DE102018218997A1 - camera module - Google Patents

Abstract

A camera module mounted on an inside of a front windshield (3) of a vehicle (2) and configured to image an outside environment (5) of the vehicle includes multiple lens units (30, 2030, 3030, 10030) to which individually, an optical image of the external environment is incident, and an imaging system (50) for individually generating an external image of the external environment by imaging by each of the lens units.

Description

Technical area

The present disclosure relates to a camera module.

background

Conventionally, camera modules installed on the inside of a windshield of a vehicle and configured to image an external environment of the vehicle have been well known. One of the foregoing camera modules has been disclosed in Patent Literature 1.

Patent Literature 1

Publication of Japanese Patent No. 5316562

One type of camera modules of the present disclosure has been disclosed in Japanese Patent Literature 1 in which a light from an external environment penetrates through a lens into a vehicle camera to thereby image the external environment.

In recent years, camera modules have been required to image a wide range of external environment to recognize images for advanced driving assistance or self-driving of a vehicle. In order to meet the above requirement, it is conceivable to use a technique to image the external environment through a lens unit having a wide viewing angle about an optical axis. However, in the lens unit having the wide angle of view, a depth of field closer to one's view when viewed as an occupant of the vehicle. Therefore, there is a concern that pixel resolution in an area on the lower side, when viewed as the occupant, is degraded by the outside environment. Therefore, it is conceivable to use a technique for imaging the external environment by using both a lens unit having a wide viewing angle and a lens unit having a narrow viewing angle.

In the technique which uses the lenses in combination to allow imaging of the external environment in a wide range, positioning in which angles of view of the respective lens units overlap with each other is required of each of the lens units. However, depending on the positioning ratio of the respective lens units, the optical axes of the lens units are separated from each other in the lateral direction of the vehicle. In this case, as in (a) and (b) in 50 It can be seen that the external images formed by individually imaging the external environment by the respective lens units are likely to be in position coordinates in the lateral direction (hereinafter referred to merely as "position coordinates") with respect to the optical axes Aw and An of the pixels reflect the same places Pw and Pn, moved. The camera module for advanced driving assistance or self-driving requires high image-position accuracy in the lateral direction and increases a problem of vehicle blind spots in the lateral direction rather than in the vertical direction. For this reason, in a case where the displacement of the position coordinates between the external images formed by the respective lens units increases in the lateral direction, a concern arises that image position accuracy in the lateral direction may decrease.

In addition, as described above, a technique that uses the lenses in combination and overlaps the angles of view of the respective lens units makes it possible to image the outside environment in the wide area. Further, the technique that uses the lenses in combination covers the depth of field of the respective lens units with each other, thereby enabling to continuously image an object moving relatively in an overlapping region of the external environment. However, in a case where image recognition scarcely discriminates the relatively moving object in an external image formed by individually imaging the external environment by the respective lens units, a concern arises that the object is in a region in which to cover the depth of field with each other is lost.

Incidentally, as a viewing angle of the lens unit becomes wider, an excessive light incident on each of the lens units further increases. For this reason, it is conceivable to use a hood. However, depending on a positioning ratio of the respective lens units, the camera module including the hood increases in size to result in a concern that the large-size camera module interferes with an external environment visual field for a vehicle occupant on the inside of the windshield ,

In the technology that uses the lenses in combination, the axial positions of the respective lens units are different in each vehicle. In such a structure in which the axial positions of the respective lens units are determined individually, the positional relationship of these units is likely to increasingly vary in the axial direction of the vehicle. In a case where the Axial positions of the respective lens units can be set individually to reduce the variation at the time of making the camera module, productivity can be reduced.

Summary

As described above, it is an object of the present disclosure to provide a camera module having a novel structure capable of imaging the external environment in an image recognizable manner.

Another object of the present disclosure is to provide a camera module for imaging an external environment through multiple lens units having high image position accuracy in a side direction of a vehicle.

Another object of the present disclosure is to provide a camera module for limiting a loss of an object in an exterior image created by imaging the outside environment through the multiple lens units.

Another object of the present disclosure is to provide a compact camera module having a hood together with multiple lens units.

Another object of the present disclosure is to provide a camera module that makes it possible to ensure positioning precision of multiple lens units in a vehicle. Another object of the present disclosure is to provide a camera module that includes multiple lens units with high productivity.

Hereinafter, a technical solution of the present disclosure will be described. It should be noted that reference numerals in parentheses described in this column denote correspondence with specific means described in embodiments which will be described later in detail, and do not limit the technical scope of the present disclosure.

According to a first aspect, a camera module ( 1 configured to be mounted on an inside of a windshield ( 3 ) of a vehicle ( 2 ) and around an external environment ( 5 ) of the vehicle. The camera module has a multiplicity of lens units ( 30 . 2030 . 3030 ), the respective optical axes ( Aw . On . At ) to have. The optical axes are shifted from each other. An optical image of the external environment penetrates individually into viewing angles ( θw . θn . θt ), which are respectively about the optical axes. The viewing angles ( θw . θn . θt ) are different from each other. The camera module furthermore has an imaging system ( 50 ) to perform imaging individually through the lens units and to produce an exterior image of the external environment. According to a definition, a noted set is a set of the lens units in which viewing angles ( θw . θn . θt ) with each other, the lens units belonging to the noted set overlap each other when viewed in a vertical direction of the vehicle.

According to the first aspect, the lens units of the noted set are configured so that the optical axes are shifted from each other, the viewing angles about the optical axes are different from each other, and the angles of view coincide with each other. In the noted sets described above, the optical axes in the lateral direction of the vehicle in the positioning structure in which the lens units belonging to the noted set overlap each other when viewed in the vertical direction of the vehicle are close together. According to the configuration, a large lateral shift of the position coordinates with respect to the optical axes of the pixels reflecting the same portion is unlikely to occur in the exterior images individually generated by the respective lens units belonging to the noted set. Therefore, the configuration makes it possible to improve an image position accuracy in the lateral direction by imaging the external environment through the respective lens units belonging to the noted set.

According to a second aspect, the lens units ( 30 . 2030 . 3030 ), which belong to the notated set, a wide-angle unit ( 30w . 2030W . 3030w) that have a perspective ( θw ), with the wide-angle lens ( 34w) is defined. The lens units ( 30 . 2030 . 3030 ) further include a narrow angle unit ( 30n . 2030n . 3030n) that have a perspective ( θn . θt ), which is narrower than that of the wide-angle unit. A distant point ( dwf ), which provides depth of field recognition ( dw ) of the wide-angle unit is on a lower or more distant side above a near point (Dnc), which has a depth of field detection ( dn ) of the narrow angle unit defined, out.

According to the second aspect, the optical axes are close to each other in the lateral direction of the vehicle in the positioning structure in which the wide-angle unit with the wide viewing angle and the narrow-angle narrow angle unit, which are the lens units of the noted set, cover each other with one another viewed in the vertical direction of the vehicle. According to the configuration, probably not one large side shift of the position coordinates of the pixels reflecting the same section into the exterior images individually generated by the wide angle unit and the narrow angle unit. The external image passes through the narrow angle unit and the wide-angle unit. The wide angle unit has the depth of field detection in which the far point on the lower side is set above the near point of the depth of focus detection of the narrow angle unit to focus the image in a wide area containing the coverage area in these depth of field detections. In this way, the configuration makes it possible to improve the image position accuracy in the lateral direction in mapping the external environment.

According to a third aspect, the lens units ( 30 . 2030 ), which belong to the notated set, furthermore a telescope unit ( 30t . 2030t) that have a perspective ( θt ), which is narrower than that of the narrow angle unit ( 30n . 2030n) is. A distant point ( dnf ), which provides depth of field recognition ( dn ) of the narrow angle unit is on a lower or more distant side above a near point ( dtc ), which provides depth of field recognition ( dt ) of the telescope unit defines.

According to the third aspect, the wide angle unit, the narrow angle unit, and the telescope unit are the lens units belonging to the noted set. The telescope unit is narrower in view than the wide angle unit and the narrow angle unit. The optical axes are close to each other in the lateral direction of the vehicle in the positioning structure in which the wide angle unit, the narrow angle unit and the telescope unit overlap each other when viewed in the vertical direction of the vehicle. According to the configuration, a large side shift of the position coordinates of the pixels reflecting the same portion is unlikely to occur in the exterior images individually generated by the wide angle unit, the narrow angle unit, and the telescope unit. The Narrow Angle unit has depth of focus detection in which the far point on the lower and farther sides is set above the near point of depth of field detection of the telescope unit. The wide-angle unit has the depth of focus detection as described above. The outer image passes through the telescope unit, the narrow angle unit, and the wide-angle unit to focus the image in a wide area including the overlap region of the respective two depth of field detections. In this way, the configuration makes it possible to improve the image position accuracy in the lateral direction in mapping the external environment.

According to a fourth aspect, a camera module ( 1 configured to be mounted on an inside of a windshield ( 3 ) of a vehicle ( 2 ) and around an external environment ( 5 ) of the vehicle. The camera module has a multiplicity of lens units ( 6030 ), the respective optical axes ( Aw . On . At ) to have. The optical axes are different from each other. An optical image of the external environment penetrates individually into viewing angles ( θw . θn . θt ), which are respectively about the optical axes. The viewing angles ( θw . θn . θt ) are different from each other. The camera module furthermore has an imaging system ( 50 ) to perform imaging individually through the lens units and to produce an exterior image of the external environment. The camera module also has a hood ( 6040 . 9040 ), which has an imaging space ( 410 ) which is for directing the optical image of the external environment in a desired image area of the imaging system to the lens units and for restricting incidence of light on the lens units from an outside of the image desired area. One of the lens units is a wide-angle unit ( 6030w) that have a perspective ( θw ), with the wide-angle lens ( 34w) is defined. Another of the lens units is a narrow angle unit ( 6030n . 6030t . 7030n . 7030t . 8030n . 8030t) that have a perspective ( θn . θt ), which is narrower than that of the wide-angle unit. The hood contains: a base wall section ( 41 . 9041 ) to be located to face across the imaging space of the windshield, and a sidewall portion (FIG. 6043 . 9043 ) which is raised at the base wall portion at a lateral side of the imaging space and corresponding to a viewing angle (FIG. θw ) of the wide-angle unit is inclined laterally outward from an environment of the wide-angle unit to a side of an external environment. A narrow-angle exposure window ( 6431n . 6431t) Opens in the side wall portion on the side of the outside environment of the wide-angle unit and exposes the narrow-angle unit to the imaging space.

According to the hood of the fourth aspect, the side wall portions are inclined from the vicinity of the wide angle unit to the outside of the outside. The side wall portions are inclined according to the viewing angle of the wide-angle unit on the lateral sides of the imaging space. The imaging space guides the optical image within the imaging target range to the wide-angle unit and the narrow-angle unit among the lens units. In this example, the narrow-angle exposure window in any one of the sidewall portions opens on the outside of the wide-angle unit to expose the narrow-angle unit to the imaging space. According to the configuration, the angle of view of the narrow-angle unit falls within the inside of the viewing angle of the wide-angle unit, which decreases the inclination of the wide-angle unit Sidewall sections regulated to divide the imaging space between both of these units. Therefore, the configuration makes it possible to form the side wall portions in which the narrow-exposure window opens to be inclined in a required range for the wide-angle unit. In this way, the configuration makes it possible to reduce the size of the camera module containing the hood.

According to a fifth aspect, the lens units further include a telescope unit ( 6030t . 7030t . 8030t) that have a perspective ( θt ), which is narrower than that of the narrow angle unit ( 6030n . 7030n . 8030n) is. A telescope exposure window ( 6431t) opens in the sidewall portion on the side of the external environment beyond the wide-angle unit and exposes the telescope unit to the imaging space.

According to the hood of the fifth aspect, the side wall portions are inclined from the vicinity of the wide angle unit to the outside of the outside. The side wall portions are inclined according to the viewing angle of the wide-angle unit on the lateral sides of the imaging space. The imaging space guides the optical image within the imaging target range to the wide-angle unit and the telescope unit below the lens units. In this example, the telescope exposure window in any of the sidewall portions opens on the outside of the wide-angle unit to expose the telescope unit to the imaging space. According to the configuration, the viewing angle of the telescope unit falls within the inside of the viewing angle of the wide-angle unit to divide the imaging space between both of these units. The wide-angle unit regulates the inclination of the sidewall sections. Therefore, the configuration allows the sidewall portions in which the telescope exposure window opens and which are inclined to be limited within a required range for the wide-angle unit. In this way, the configuration makes it possible to reduce the size of the camera module containing the hood.

According to a sixth aspect, a camera module ( 1 configured to be mounted on an inside of a windshield ( 3 ) of a vehicle ( 2 ) and around an external environment ( 5 ) of the vehicle. The camera module has a multiplicity of lens units ( 30 . 2030 . 3030 ), the respective optical axes ( Aw . On . At ) to have. The optical axes are shifted from each other. An optical image of the external environment penetrates individually into viewing angles ( θw . θn . θt ), which are respectively about the optical axes. The viewing angles ( θw . θn . θt ) are different from each other. The camera module furthermore has an imaging system ( 50 ) to perform imaging individually through the lens units and to produce an exterior image of the external environment. According to a definition, a noted set is a set of the lens units in which viewing angles ( θw . θn . θt ) overlap each other, depth of field ( dw . dn . dt ) of the lens units belonging to the notated set, in which a distant point ( dwf . dnf ) from another of the lens units between a near point ( dnc . dtc ) and a distant point ( dnf . dtf ) of one of the lens units in the external environment, and each of the dots, further point of one and further of the other, defines a boundary position of image recognition which is implemented by imaging by the corresponding one of the lens units.

According to the sixth aspect, the lens units of the noted set are configured so that the optical axes are shifted from each other, the wink angles around the optical axes are different from each other, and the wink angles overlap each other. In the external environment, the far point of the depth of focus detection is set by the other of the lens units of the noted set between the near point and the far point of the depth of focus detection of one of the lens units. The configuration forms the region in which respective depth of field detections overlap. The far point of the one of the lens units and the far point of the other of the lens units define boundary positions of the image recognition, which is implemented by individually imaging the outside environment by the respective lens units. The configuration makes it possible to distinguish an image recognition of an object moving relatively in the coverage region in any of the exterior images formed by the respective lens units of the noted set in which the depth of field recognitions coincide with each other. Therefore, the configuration makes it possible to limit loss of an object that is in the region where the respective depth of field detections coincide with each other in the outer image that is a result of imaging the external environment by the respective lens units of the noted set.

According to a seventh aspect, a camera module ( 1 configured to be mounted on an inside of a windshield ( 3 ) of a vehicle ( 2 ) and around an external environment ( 5 ) of the vehicle. The camera module has a multiplicity of lens units ( 30 . 2030 . 3030 . 6030 . 10030 ), the respective optical axes ( Aw . On . At ) to have. The optical axes are shifted from each other. An optical image of the external environment penetrates individually Viewing angle ( θw . θn . θt ), which are respectively about the optical axes. The viewing angles ( θw . θn . θt ) are different from each other. The camera module furthermore has an imaging system ( 50 ) to perform imaging individually through the lens units and to produce an exterior image of the external environment. The camera module furthermore has a camera cover ( 20 ) attachable to the windshield and accommodating each of the lens units. The camera module furthermore has a common positioning member ( 10060 ) which is provided in common to the lens units and positions each of the lens units with respect to the camera cover in an axial direction.

According to the seventh aspect, in the vehicle, the respective lens units are accommodated in the camera cover mounted on the windshield. The respective lens units are positioned in the axial direction using the common positioning member common to these units. In this way, the common positioning member makes it possible to reduce a variation of the two-sided axial position ratio of the respective lens units in the vehicle. That is, the configuration makes it possible to ensure a positioning accuracy of the respective lens units in the vehicle. Furthermore, the axial positions of the respective lens units can be adjusted together using the common positioning member. Therefore, productivity can be improved.

According to an eighth aspect, the common positioning member includes a reference surface portion (FIG. 10601 ) adjoining each of the lens units in the axial direction to position each of the lens units on the same plane.

According to the common positioning member of the eighth aspect, in the vehicle, the reference surface portion adjoins the respective lens units in the axial direction such that all of the units are positioned on the same plane. According to the configuration, in the vehicle, the respective lens units can be precisely positioned on the same plane. Therefore, there hardly arises a variation in the two-sided axial position ratio of the respective lens units per se. In other words, the respective lens units in the vehicle can be positioned with high accuracy. In addition, the lens units can be easily and collectively positioned in the axial direction by abutting on the reference surface portion on the same plane. Therefore, the configuration makes it possible to promote high productivity and efficiency.

list of figures

• ist 1 eine Vorderansicht, die ein Fahrzeug darstellt, auf das ein Kameramodul gemäß einer ersten Ausführungsform angewendet wird,
• ist 2 eine Querschnittsansicht, die das Kameramodul, das entlang einer Linie II-II in 5 genommen wird, gemäß der ersten Ausführungsform darstellt,
• ist 3 eine perspektivische Ansicht, die ein Kameramodul gemäß der ersten Ausführungsform darstellt,
• ist 4 eine schematische Draufsicht, die einen Abbildungsbereich von jeweiligen Linseneinheiten gemäß der ersten Ausführungsform darstellt,
• ist 5 eine Vorderansicht, die ein Positionierungsverhältnis der jeweiligen Linseneinheiten gemäß der ersten Ausführungsform darstellt,
• sind (a), (b) und (c) in 6 vordere schematische Ansichten, die Außenbilder darstellen, die durch ein Abbilden einer äußeren Umgebung durch die jeweiligen Linseneinheiten gemäß der ersten Ausführungsform erzeugt werden,
• ist 7 eine Querschnittsansicht, die ein Kameramodul, das 2 entspricht, gemäß einer zweiten Ausführungsform darstellt,
• ist 8 eine Querschnittsansicht, die ein Kameramodul, das entlang einer Linie VIII-VIII von 10 genommen ist, gemäß einer dritten Ausführungsform darstellt,
• ist 9 eine Querschnittsansicht, die das Kameramodul, das entlang einer Linie IX-IX in 10 genommen ist, gemäß der dritten Ausführungsform darstellt,
• ist 10 eine Vorderansicht, die ein Positionierungsverhältnis der jeweiligen Linseneinheiten gemäß der dritten Ausführungsform darstellt,
• ist 11 eine schematische Draufsicht, die einen Abbildungsbereich von jeweiligen Linseneinheiten gemäß der vierten Ausführungsform darstellt,
• ist 12 eine schematische Draufsicht, die einen Abbildungsbereich von jeweiligen Linseneinheiten gemäß einer fünften Ausführungsform darstellt,
• ist. 13 eine Querschnittsansicht, die ein Kameramodul, das entlang einer Linie VIII-VIII bzw. XIII-XIII von 18 genommen ist, gemäß einer sechsten Ausführungsform darstellt,
• ist 14 eine Querschnittsansicht, die ein Kameramodul, das entlang einer Linie XIV-XIV von 18 genommen ist, gemäß der sechsten Ausführungsform darstellt,
• ist 15 eine Querschnittsansicht, die das Kameramodul, das entlang einer Linie XV-XV von 18 genommen ist, gemäß der sechsten Ausführungsform darstellt,
• ist 16 eine perspektivische Ansicht, die das Kameramodul gemäß der sechsten Ausführungsform darstellt,
• ist. 17 eine Draufsicht, die eine Haube gemäß der sechsten Ausführungsform darstellt,
• ist 18 eine Vorderansicht, die ein Positionierungsverhältnis der jeweiligen Linseneinheiten gemäß der sechsten Ausführungsform darstellt,
• ist 19 eine Querschnittsansicht, die ein Kameramodul, das 14 entspricht, gemäß einer siebten Ausführungsform darstellt,
• ist 20 eine Querschnittsansicht, die das Kameramodul, das 15 entspricht, gemäß der siebten Ausführungsform darstellt,
• ist 21 eine Draufsicht, die eine Haube gemäß der siebten Ausführungsform darstellt,
• ist 22 eine Querschnittsansicht, die ein Kameramodul, das 14 entspricht, gemäß einer achten Ausführungsform darstellt,
• ist 23 eine Querschnittsansicht, die das Kameramodul, das 15 entspricht, gemäß der achten Ausführungsform darstellt,
• ist 24 eine Draufsicht, die eine Haube gemäß der achten Ausführungsform darstellt,
• ist 25 eine Querschnittsansicht, die ein Kameramodul, das 13 entspricht, gemäß einer neunten Ausführungsform darstellt,
• ist 26 eine perspektivische Ansicht, die das Kameramodul gemäß der neunten Ausführungsform darstellt,
• ist 27 eine Draufsicht, die eine Haube gemäß der neunten Ausführungsform darstellt,
• ist 28 eine vordere schematische Ansicht, die eine Steuerungsfunktion gemäß der neunten Ausführungsform darstellt,
• ist 29 eine schematische Draufsicht, die eine Fahrzeugsteuerungsfunktion gemäß der neunten Ausführungsform darstellt,
• ist 30 eine schematische Draufsicht, die eine Struktur der Haube gemäß der neunten Ausführungsform darstellt,
• ist 31 eine schematische Seitenansicht, die eine Fahrzeugsteuerungsfunktion gemäß der neunten Ausführungsform darstellt,
• ist 32 eine schematische Seitenansicht, die die Struktur der Haube gemäß der neunten Ausführungsform darstellt,
• ist 33 eine Querschnittsansicht, die ein Kameramodul, das 2 entspricht, gemäß einer zehnten Ausführungsform darstellt,
• ist in 34 eine Querschnittsansicht, die eine Modifikation von 7 darstellt,
• ist 35 eine Vorderansicht, die eine Modifikation von 5 darstellt,
• ist 36 eine Vorderansicht, die eine Modifikation von 5 darstellt,
• ist 37 eine Vorderansicht, die eine Modifikation von 5 darstellt,
• ist 38 eine Querschnittsansicht, die eine Modifikation von 8 darstellt,
• ist 39 eine Querschnittsansicht, die eine Modifikation von 9 darstellt,
• ist 40 eine Querschnittsansicht, die eine Modifikation von 7 zeigt,
• ist 41 eine Querschnittsansicht, die eine Modifikation von 27 darstellt,
• ist 42 eine Querschnittsansicht, die eine Modifikation von 27 darstellt,
• ist 43 eine Querschnittsansicht, die eine Modifikation von 8 darstellt,
• ist 44 eine Querschnittsansicht, die eine Modifikation von 9 darstellt,
• ist 45 eine Querschnittsansicht, die eine Modifikation von 34 darstellt,
• ist 46 eine Querschnittsansicht, die eine Modifikation von 7 darstellt,
• ist 47 eine Draufsicht, die eine Modifikation von 17 darstellt,
• ist 48 eine Querschnittsansicht, die eine Modifikation von 2 darstellt,
• ist 49 eine Querschnittsansicht, die eine Modifikation von 2 darstellt, und
• sind (a) und (b) 50 vordere schematische Ansichten, die Außenbilder zeigen, die ein Problem darstellen.

The above and other objects, features and advantages of the present disclosure will become more apparent from the following detailed description made with reference to the accompanying drawings. In the drawings:

• is 1 FIG. 16 is a front view illustrating a vehicle to which a camera module according to a first embodiment is applied; FIG.
• is 2 a cross-sectional view showing the camera module along a line II - II in 5 is taken according to the first embodiment,
• is 3 a perspective view illustrating a camera module according to the first embodiment,
• is 4 FIG. 12 is a schematic plan view illustrating an imaging range of respective lens units according to the first embodiment; FIG.
• is 5 FIG. 16 is a front view illustrating a positioning ratio of the respective lens units according to the first embodiment; FIG.
• are (a), (b) and (c) in 6 front schematic views illustrating exterior images generated by imaging an external environment by the respective lens units according to the first embodiment;
• is 7 a cross-sectional view showing a camera module, the 2 corresponds, according to a second embodiment,
• is 8th a cross-sectional view showing a camera module running along a line VIII - VIII from 10 is taken, according to a third embodiment,
• is 9 a cross-sectional view showing the camera module along a line IX - IX in 10 is taken, according to the third embodiment,
• is 10 FIG. 16 is a front view illustrating a positioning ratio of the respective lens units according to the third embodiment; FIG.
• is 11 FIG. 12 is a schematic plan view illustrating an imaging range of respective lens units according to the fourth embodiment; FIG.
• is 12 FIG. 12 is a schematic plan view illustrating an imaging area of respective lens units according to a fifth embodiment; FIG.
• is. 13 a cross-sectional view showing a camera module running along a line VIII - VIII or. XIII - XIII from 18 is taken, according to a sixth embodiment,
• is 14 a cross-sectional view showing a camera module running along a line XIV - XIV from 18 is made according to the sixth embodiment,
• is 15 a cross-sectional view showing the camera module along a line XV - XV from 18 is made according to the sixth embodiment,
• is 16 FIG. 4 is a perspective view illustrating the camera module according to the sixth embodiment; FIG.
• is. 17 a plan view illustrating a hood according to the sixth embodiment,
• is 18 FIG. 16 is a front view illustrating a positioning ratio of the respective lens units according to the sixth embodiment; FIG.
• is 19 a cross-sectional view showing a camera module, the 14 corresponds, according to a seventh embodiment represents,
• is 20 a cross-sectional view showing the camera module, the 15 corresponds, according to the seventh embodiment represents
• is 21 a plan view illustrating a hood according to the seventh embodiment,
• is 22 a cross-sectional view showing a camera module, the 14 corresponds, according to an eighth embodiment represents,
• is 23 a cross-sectional view showing the camera module, the 15 corresponds, according to the eighth embodiment represents,
• is 24 a plan view illustrating a hood according to the eighth embodiment,
• is 25 a cross-sectional view showing a camera module, the 13 corresponds, according to a ninth embodiment represents,
• is 26 FIG. 4 is a perspective view illustrating the camera module according to the ninth embodiment. FIG.
• is 27 a plan view illustrating a hood according to the ninth embodiment,
• is 28 FIG. 4 is a front schematic view illustrating a control function according to the ninth embodiment; FIG.
• is 29 FIG. 12 is a schematic plan view illustrating a vehicle control function according to the ninth embodiment; FIG.
• is 30 FIG. 12 is a schematic plan view illustrating a structure of the hood according to the ninth embodiment; FIG.
• is 31 FIG. 12 is a schematic side view illustrating a vehicle control function according to the ninth embodiment; FIG.
• is 32 FIG. 3 is a schematic side view showing the structure of the hood according to the ninth embodiment; FIG.
• is 33 a cross-sectional view showing a camera module, the 2 corresponds, according to a tenth embodiment represents,
• is in 34 a cross-sectional view showing a modification of 7 represents,
• is 35 a front view, which is a modification of 5 represents,
• is 36 a front view, which is a modification of 5 represents,
• is 37 a front view, which is a modification of 5 represents,
• is 38 a cross-sectional view showing a modification of 8th represents,
• is 39 a cross-sectional view showing a modification of 9 represents,
• is 40 a cross-sectional view showing a modification of 7 shows,
• is 41 a cross-sectional view showing a modification of 27 represents,
• is 42 a cross-sectional view showing a modification of 27 represents,
• is 43 a cross-sectional view showing a modification of 8th represents,
• is 44 a cross-sectional view showing a modification of 9 represents,
• is 45 a cross-sectional view showing a modification of 34 represents,
• is 46 a cross-sectional view showing a modification of 7 represents,
• is 47 a plan view showing a modification of 17 represents,
• is 48 a cross-sectional view showing a modification of 2 represents,
• is 49 a cross-sectional view showing a modification of 2 represents, and
• are (a) and (b) 50 front schematic views showing exterior images that pose a problem.

Detailed description

Hereinafter, multiple embodiments of the present disclosure will be described with reference to the drawings. The same reference numerals are given to the corresponding elements in FIG of the embodiment, and redundant descriptions of them may be omitted. When only a portion of a configuration is described in each embodiment, configurations of other embodiments described in advance may be applied to the other portions. In addition to the combinations of configurations clearly illustrated in the explanation of the embodiments, as long as problems do not arise particularly in combination, the configurations of multiple embodiments can be partially combined with each other, even if it is not clearly described.

First embodiment

As it is in 1 and 2 is a camera module 1 according to a first embodiment on a vehicle 2 mounted and this is configured to an external environment 5 map. In the following description, a vertical direction of the vehicle 2 set to a vertical direction on a horizontal plane, becomes a vehicle width direction of the vehicle 2 in a horizontal direction of the vehicle 2 set on the horizontal plane in a lateral direction and becomes a vehicle longitudinal direction of the vehicle 2 set in the horizontal direction to a longitudinal direction.

The camera module 1 is on the inside of a front windshield 3 in the vehicle 2 assembled. The front windshield 3 is located in front of a driver's seat in the vehicle 2 , The front windshield 3 shares a passenger compartment 4 covering the inside of the front windshield 3 is, from the outside environment 5 , The further the front windscreen 3 approaching the lower side, the farther the front windshield is 3 toward the front on the lower side (that is, to the side of the outside environment 5 towards) inclined, if one considers it as the occupant of the vehicle 2 considered. The front windshield 3 is made of a translucent material, such as glass, to create an optical image that is from a landscape or scenery of the external environment 5 in the passenger compartment 4 into it, to transfer.

An installation position of the camera module 2 on the front windshield 3 is set to a position that is a field of vision of an occupant in the driver's seat in the passenger compartment 4 sitting, not significantly impaired. Even more specific, as it is in 1 It can be seen a vertical installation position in the vertical direction within a range xv for example, about 20% from an upper edge of an aperture window 6a a pillar 6 is removed. Inside the vehicle 2 is the pillar 6 in a frame shape and holding an outer peripheral edge portion of the front windshield 3 , A side installation position is set in the side direction within a range Xh, for example, about 15 cm from a center of the opening window 6a located on either side. With these settings, the installation location is in a wiping area xr a windshield wiper, the front windshield 3 wipes. In addition, the installation position is located at a portion where the front windshield 3 for example, is inclined at about 22 to 90 ° with respect to the front and rear directions.

As it is in 2 and 3 can be seen, contains the camera module 1 a bracket assembly 10 , a camera panel 20 , multiple lens units 30 a hood 40 and an imaging system 50 , In 3 the components are partially omitted from the figure.

The bracket assembly 10 contains a staple main body 11 and mounting pads or Montierpads 12 in combination. The staple main body 11 is made of a relatively easily moldable material, such as a resin, and is molded in a substantially plate-like shape as a whole. The staple main body 11 is along an inner surface 3a the front windshield 3 placed. As it is in 2 can be seen, are the Montierpolster 12 on the staple main body 11 fitted and attached. Each of the mounting pads 12 is on the inner surface 3a the front windshield 3 attached by adhesion. This is the camera module 1 that the clip assembly 10 contains, inside the front windshield 3 mounted in a state in which it respects the vehicle 2 is positioned.

The camera panel 20 contains a pair of panel members 21 and 22 , Each of the panel members 21 and 22 is made of a rigid material having a comparatively high heat radiation property, such as aluminum, and is formed in a hollow shape as a whole.

The inverted cup-shaped upper panel member 21 located on a lower side of the bracket assembly 10 to its opening section to the lower side, which is opposite to the assembly 10 is to judge. The upper cladding member 21 is firmly in the staple main body 11 fitted. This is the camera panel 20 through the clip assembly 10 inside the front windshield 3 positioned. The upper cladding member 21 and the front windshield 3 in the above positioning position define a housing recess 212 between these for accommodating the hood 40 ,

The plate-shaped lower lining member 22 located on the lower side of the upper trim panel 21 to its opening portion to the upper side, on the side of the upper panel member 21 is to judge. The lower panel member 22 is with a screw on the upper panel member 21 fixed. In this way, the panel members define 21 and 22 an accommodation room 25 for housing the lens units 30 and the imaging system 50 in cooperation with each other.

The multiple (three in the present embodiment) lens units 30 are located in the accommodation room 25 the camera panel 20 , As it is in 2 and 3 can be seen, are front ends of the respective lens units 30 to the outside of the camera panel 20 through a common lens window 211 exposed. The common lens window 211 penetrates through a vertical wall section 210 of the upper cladding member 21 by. In this way, viewing angles θw, θn and θt which are different in magnitude from each other as in FIG 4 you can see the respective optical axes Aw . On and At in the respective lens units 30 of each other are fixed. An optical image of the external environment 5 can individually on the respective lens units 30 in the respective viewing angles θw, θn and θt.

As it is in 2 and 3 The hood is visible 40 integral with the staple main body 11 For example, by resin molding or the like, thereby forming a part of the staple assembly 10 to build. The contour of the hood 40 is, when viewed from the upper side, in a dish shape in the lateral direction with respect to the optical axes Aw . On and At the respective lens units 30 is symmetrical. The hood 40 has a base wall section 41 and sidewall sections 43 ,

Like it 2 can be seen, is the base wall section 41 in the accommodation recess 212 between the upper cladding member 21 and the front windshield 3 accommodated. The base wall section 41 is in a position in which, the farther the base wall section 41 approaching the front, the more or more of the base wall portion 41 closer to the front windshield 3 on the upper side is. A bottom wall surface 41a of the base wall section 41 Spreads out in a substantially flat shape, that of the inner surface 3a the front windshield 3 over the picture space 410 on the optical axes Aw . On and At , in the 2 and 3 to be seen, is opposite. According to this condition, the optical image becomes the external environment 5 within the map target range of the imaging system 50 from the picture room 410 to the respective lens units 30 after passing through the front windshield 3 has gone through.

The sidewall sections 43 are located on two-sided symmetrical positions with respect to the optical axes Aw . On and At in the lateral direction, around the imaging space 410 between them from both lateral sides of the picture space 410 interpose or interpose. The respective side wall sections 43 are from lateral side edges of the base wall section 41 are raised upward and are each formed in a straight plate-like shape. A two-sided distance between the respective side wall sections 43 in the lateral direction widening gradually toward the front. With the configuration, the front ends of the respective lens units 30 by a portion between rear ends of the respective side wall portions 43 to the picture room 410 exposed. The height of the respective side wall sections 43 from the base wall portion 41 decreases gradually toward the front. This way, as it is in 2 you can see the respective side wall sections 43 in a position to from the inner surface 3a the front windshield 3 with a gap 430 to be spaced in its entire longitudinal region.

With the configuration defined the hood 40 the picture room 410 according to the angles θw . θn and θt the respective lens units 30 to an incidence of the optical image of the external environment 5 that is within the imaging target range allowed on the respective lens units 30. In addition, the dome defines 40 the picture room 410 To get an incident of excessive light on the respective lens units 30 from the outside environment 5 which is outside of the target image range, for example, an incidence of reflected light passing through the inner surface 3a the front windshield 3 is reflected, restrict.

The imaging system 50 contains multiple imager units 51 that with a control plate 54 and a control circuit 55 combined. The components 51 . 54 and 55 of the imaging system 50 are located in the accommodation room 25 the camera panel 20 ,

The (three in the present embodiment) imager units 51 are individually on the back sides of the respective lens units 30 , the are different from each other, positioned. In this example, the positions of the respective imager units are 51 according to focal lengths of the respective lens units 30 corresponding to the angles of view θw, θn and θt which are different from each other, shifted from each other in the longitudinal direction. Each of the imager units 51 contains a picture plate 510 , an image acquisition device 511 and an imaging circuit 512 , The picture plate 510 is formed of a rigid circuit board such as a glass epoxy plate, and is formed in a substantially rectangular plate-like shape. The image acquisition device 511 is configured with a color-type or monochrome-type imager such as a CCD (Charge-Coupled Device) or a CMOS (Complementary Metal-Oxide-Semiconductor) and is on the imaging plate 510 assembled. The image acquisition device 511 has multiple pixels in a matrix shape along the vertical direction and the side direction, the vertical direction, and the horizontal direction of the vehicle 2 correspond, which is on the horizontal plane, respectively arranged. The picture circuit 512 includes multiple circuit elements capable of outputting the image acquisition device 511 to process, and is at the picture plate 510 assembled.

In each of the imager units 51 becomes an optical image that is from the outside environment 5 through the front windshield 3 on the image acquisition device 511 through the corresponding lens unit 30 educated. In each of the imager units 51 captures the image acquisition device 511 the optical image formed thereon and processes the imaging circuit 512 a signal or data from the image acquisition device 511 is or will be issued.

The control plate 54 is formed of a rigid circuit board such as a glass epoxy plate, and is formed in a substantially rectangular plate-like shape. The control plate 54 is between the two panels 21 and 22 positioned. An external connection element 542 is at the control panel 54 mounted to outside the camera panel 20 to be exposed. The external connection element 542 is with an external circuit, such as an ECU, outside the camera panel 20 connected. In this example, the external connector is 542 on an excellent substrate section 543 assembled. The excellent substrate section 543 protrudes from a rear margin 544 the control panel 54 further to the rear. Incidentally, although it is not seen, the excellent substrate portion 543 and the camera panel 20 fixed to a base portion of an inner rearview mirror (which in this case includes an electronic mirror) in the passenger compartment 4 according to an installation position of the camera module 1 in the front windshield 3 to get around.

The control circuit 55 contains multiple circuit elements that a microcomputer 550 included, and is on the control panel 54 assembled. The control circuit 55 is via respective individual flexible disks (FPC) 540 with the imaging circuits 512 the respective image generator units 51 connected. In this example, multiple pass windows 541 in the control panel 54 formed so that the FPCs 540 individually through the passage windows 541 be inserted. This way are the respective FPCs 540 with the mapping circuits 512 the respective image generator units 51 located on the upper side of the control panel 54 are located, connected and penetrate the respective FPCs 540 through the passage window 541 in the vertical direction to with the control circuit 55 on the lower side of the control panel 54 to be connected.

The control circuit 55 controls the imaging process of the image acquisition device 511 in each of the imager units 51 in cooperation with the imaging circuit 512 the imager unit 51 , The imaging process includes an exposure state during imaging. Furthermore, the control circuit performs 55 an image processing of the signal or data from the image acquisition device 511 from each imager unit 51 in cooperation with the imaging circuit 512 the imager unit 51 be issued by. The image control function and the image processing function make it possible as the imaging result by each lens unit 30 to create the outside image to the outside environment 5 in a range of a corresponding the angle of view θw . θn and θt the lens unit 30 to reflect. At this time, the outside image is generated to be an object such as an obstacle or a structure in the viewpoints θw . θn or θt to recognize that are reflected in the outer image. With the configuration, the external image is through each lens unit 30 with the corresponding imaging unit 51 generated. Incidentally, at least one of the functions, image control function and image processing function may be used with only the control circuit 55 or with only the picture circuit 512 from each imager unit 51 to be provided.

The control circuit 55 Also includes an image recognition function for recognizing an object that is reflected in the exterior image. In the image recognition function, the control circuit discriminates 55 the type of object, for example, whether the obstacle is a pedestrian, a bicycle, another vehicle or the like, or whether the structure is a traffic signal, a traffic sign, a building or the like is. As in (a) to (c) in 6 can be seen, displacements of the position coordinates of pixels, the same positions arise pw . pn and Pt in the outdoor pictures, with the respective lens units 30 are generated, respectively, with respect to the optical axes Aw . On and At reflect. The image recognition function corrects the control circuit 55 the shifts by performing, for example, an alignment processing. In particular, the control circuit corrects at this time 55 the displacements in a case where the displacements of the position coordinates at, for example, disappeared points or the like with respect to the respective optical axes Aw . On and At in at least one of the directions, vertical direction or lateral direction. The missing points are the same positions pw . pn and Pt ,

Detailed structure of the lens unit

Next, a detailed structure of the respective lens units will be described 30 described.

As it is in 2 . 3 and 5 can be seen, contains the wide-angle unit 30w that is one of the lens units 30 is, a wide-angle lens mount 32w and a wide-angle lens 34w , The wide-angle lens mount 32w is formed in a high shape and is made of a relatively formgießbar stiff material, such as a resin. The wide-angle lens mount 32w is with a screw or an adhesive on the upper panel member 21 attached. The wide-angle lens 34w is formed in a concave meniscus lens mold, and is made of a translucent material such as glass. The wide-angle lens 34w is in the wide-angle lens mount 32w along with a rear lens set (not seen) for correcting an optical aberration such as a chromatic aberration. That's why the wide-angle lens mount 32w positioned so that the inner surface 3a the front windshield 3 from the wide-angle lens 34w is spaced. The wide-angle lens 34w forms the front end of the wide-angle unit 30w and is located at a prescribed distance on the front of the rear lens set.

The optical axis Aw of the wide-angle unit 30w , in the 2 . 4 and 5 is seen to extend obliquely downward or upward with respect to the longitudinal direction or to extend along the longitudinal direction. As it is in 4 can be seen, the angle becomes θw the wide angle unit 30w to a relatively large angle of, for example, about 120 ° using the wide-angle lens 34w set. However, the viewing angle θw may be set to an angle wider than 120 °. Using the wide-angle lens 34w the depth of focus detection Dw becomes within the viewing angle θw of the wide-angle unit 30w through a given area in the external environment 5 Are defined. This predetermined range is between a near point Dwc which is on a nearer side (hereinafter simply referred to as the nearer side) when viewed as the occupant of the vehicle 2 considered, and a distant point dwf on a lower side (hereinafter simply referred to as the lower side) when viewed as the occupant.

As it is in 2 . 3 and 5 can be seen contains the narrow angle unit 30n which is another of the lens units 30 is a narrow angle lens mount 32n and a narrow angle lens 34n , the narrow angle lens mount 32n is formed in a hollow shape and is made of a relatively moldable stiff material, such as a resin. The narrow angle lens mount 32n is with a screw or an adhesive on the upper panel member 21 attached. The narrow angle lens 34n is formed in a concave meniscus lens mold, and is made of a translucent material such as glass. The narrow angle lens 34n is in the narrow angle lens mount 32n together with a rear lens set (not shown) for correcting an optical aberration such as a chromatic aberration. Therefore, the narrow angle lens mount is 32n positioned so that the narrow angle lens 34n directly above the wide-angle lens 34w is located, essentially without longitudinal displacement and side shift. The narrow angle lens 34n forms the front end of the narrow angle unit 30n on the front of the rear lens set. In the configuration is, the farther the front windshield 3 approaching the front on the lower or more distant side, the farther the front windshield 3 inclined to the lower side. The wide angle unit 30w does not protrude significantly from the upper narrow angle unit 30n to the deeper or more distant side out.

The optical axis At the narrow angle unit 30n , in the 2 . 4 and 5 is seen to extend obliquely downward or upward with respect to the longitudinal direction or to extend along the longitudinal direction. In addition, the optical axis is At the narrow angle unit 30n decentered from the optical axis Aw of the wide-angle unit 30w or is this from the center of the optical axis Aw of the wide-angle unit 30w offset, in particular in the substantially vertical direction or vertical direction. That way is the optical axis An with the optical axis Aw in the lateral position of the vehicle 2 aligned. As it is in 4 is seen using the narrow angle lens 34n the point of view θn the narrow angle unit 30n set at a mean angle narrower than the angle of view θw the wide angle unit 30w is. The mean angle is about 60 °, for example. With these settings, the respective viewing angles overlap θn and θw the narrow angle unit 30n and the wide-angle unit 30w together. Using the narrow angle lens 34n becomes the depth of focus detection dn within the perspective θn the narrow angle unit 30n through a predetermined area in the external environment 5 Are defined. This predetermined range is between a near point dnc on the closer side and a distant point dnf on the lower or more distant side.

More specifically, in the present embodiment, the far point becomes dwf the wide angle unit 30w on the lower or more distant side behind the near point dnc the narrow angle unit 30n set. In addition, in the present embodiment, the near point becomes dnc the narrow angle unit 30n on the lower or more distant side behind the near point Dwc the wide angle unit 30w set. Furthermore, in the present embodiment, the far point becomes dnf the narrow angle unit 30n on the lower or more distant side behind the distant point dwf the wide angle unit 30w set. These settings become the distant point dwf the wide angle unit 30w between the near point dnc and the distant point dnf the narrow angle unit 30n fixed so that the units 30n and 30w form a region Rnw in which the depth-of-focus detections Dn and Dw coincide with each other.

As it is in 2 . 3 and 5 can be seen, contains a telescope unit 30t that still another of the lens units 30 is a telescope lens mount 32t and a telescope lens 34t , The telescope lens mount 32t is formed in a hollow shape and is made of a relatively moldable stiff material, such as a resin. The telescope lens mount 32t is with a screw or an adhesive on the upper panel member 21 attached. The telescope lens 34t is formed in a Konkavlinsenform and is made of a translucent material, such as glass. The telescope lens 34t is in the telescope lens frame 32t together with a rear lens set (not shown) for correcting an optical aberration such as a chromatic aberration. That's why the telescope lens mount 32t positioned so that the telescope lens 34t directly above the narrow angle lens 34n is located, essentially without longitudinal displacement and side shift. The telescope lens 34t forms the front end of the telescope unit 30t on the front of the rear lens set. With the configuration, the narrow angle unit protrudes 30n not essential from the upper telescope unit 30t to the deeper or more distant side out. In addition, the wide-angle unit protrudes 30w not essential from the upper telescope unit 30t to the deeper or more distant side out.

As it is in 2 . 4 and 5 can be seen, the optical axis At the telescope unit 30t set, and to extend obliquely downward or upward with respect to the longitudinal direction or to extend along the longitudinal direction. In addition, the optical axis At the telescope unit 30t decentered by both of the respective optical axes Aw and On the wide angle unit 30w and the narrow angle unit 30n in the substantially vertical direction or vertical direction, or is the optical axis At the telescope unit 30t offset from these centrally. In this way is the optical axis At with both of the optical axes Aw and On in the lateral position of the vehicle 2 aligned. As it is in 4 is seen using the telescope lens 34d the point of view θt the telescope unit 30t set at a small angle, the narrower than both from the respective angles θw and θn the wide angle unit 30w and the narrow angle unit 30n is. The viewpoint θt is for example about 35 °. With these settings, the respective viewing angles overlap θt and θn the telescope units 30t and narrow angle unit 30n together. In addition, the respective viewing angles overlap θt and θw the telescope unit 30t and the wide-angle unit 30w as well with each other. Using the telescope lens 34t becomes the depth of focus detection dt within the viewing angle θt of the telescope unit 30t through a given area in the external environment 5 Are defined. This predetermined range is between a near point dtc on the closer side and a distant point dtf on the lower or more distant side.

More specifically, in the present embodiment, the far point becomes dnf the narrow angle unit 30n on the lower or more distant side behind the near point dtc the telescope unit 30t set. In addition, in the present embodiment, the near point becomes dtc the telescope unit 30t on the lower or more distant side behind the near point dnc the narrow angle unit 30n , and the near point Dwc and the distant point dwf the wide angle unit 30w set. Further, in the present embodiment, the remote point Dtf of the telescope unit becomes 30t on the lower or more distant side behind the distant point Dnf of the narrow angle unit 30n and the distant point dwf the wide angle unit 30w set. With these settings is the distant point dnf the narrow angle unit 30n between the near point dtc and the distant point dtf the telescope unit 30t positioned so that the units 30t and 30n the region Rtn form in which the depth of field identifications dt and dn cover each other. However, in the present embodiment, the far point is dwf the wide angle unit 30w from the near point dtc and the distant point dtf the telescope unit 30t shifted so that the depth of field detections dt and dw from these units 30t and 30w are shifted from each other so as not to overlap each other.

In the first embodiment described above, the first to fourth notated sets are assumed to be the notated sets in which the respective lens units 30 at least partially overlap with each other when viewed in the vertical direction. More specifically, the first recorded set contains the wide-angle unit 30w and the narrow angle unit 30n overlapping each other when viewed in the vertical direction. The second notated set contains the wide-angle unit 30w and the telescope unit 30t overlapping each other when viewed in the vertical direction. The third notated set contains the narrow angle unit 30n and the telescope unit 30t overlapping each other when viewed in the vertical direction. The fourth notated set contains the wide-angle unit 30w , the narrow angle unit 30n and the telescope unit 30t overlapping each other when viewed in the vertical direction.

The respective units 30w . 30n and 30t as the lens units 30 belonging to the first to fourth notated sets satisfy the following equation 1 with the respective distant points dwf . dnf and dtf as corresponding distant points. In this way, boundary positions of the image recognition caused by a single mapping of the external environment through the units 30w . 30n and 30t is implemented, respectively by the corresponding remote points dwf . dnf and dtf Are defined. $$\text{Lf}=\text{EFL}\cdot \text{sf}/\text{Wf}$$

Represented in this example Lf in Equation 1, the distance from each of the units 30w . 30n and 30t to a corresponding one of the corresponding remote points dwf . dnf and dtf , EFL in Equation 1 represents a focal length (in detail, a combined focus between each of the lenses 34w . 34n . 34t and their following lens set) in each of the units 30w . 30n and 30t , sf in Equation 1 represents a minimum object size that is responsible for image recognition at each of the corresponding far points dwf . dnf and dtf a corresponding one of the units 30w . 30n and 30t is required. The minimum object size sf is a minimum dimension value set for each type of the object in each of the directions, horizontal direction and vertical direction. The minimum object size sf is the minimum dimension value at, for example, the corresponding remote point dwf . dnf or dtf , which is required for vehicle control with an external circuit. The minimum dimension value is assumed in advance. Wf in Equation 1 represents a minimum pixel width necessary for image recognition with the image acquisition device 511 the imager unit 51 a corresponding one of the units 30w . 30n and 30t in the imaging system 50 is required. The minimum pixel width Wf For example, a pixel width is a number of pixels in the vertical direction and the lateral direction of the image acquisition device 511 is the same or which is meant these directions. The minimum pixel width Wf is set to a pixel width of a number of pixels corresponding to an image ID in a pattern matching of the external image acquired by the image acquisition device 511 is generated is minimally required.

In contrast, the respective units fulfill 30w . 30n and 30t as the lens units 30 belonging to the first to fourth noted sets, the following equation 2 with the respective near points Dwc . dnc and dtc as corresponding close points. In this way, the imaging boundary positions at which the image is individually displayed by the respective units upon imaging the external environment 30w . 30n and 30t is focused through the respective near points Dwc . dnc and dtc Are defined. $$\text{Lc}={\text{<figure-callout id="2" label="EFL" filenames="DE102018218997A1\_0003.png,DE102018218997A1\_0004.png" state="{{state}}">EFL</figure-callout>}}^2\cdot \text{pc}/\left(\text{FNO}\cdot {\text{D}}_{\text{c}}\right)$$

In this example, Lc in Equation 2 represents the distance from each of the units 30w . 30n and 30t to a corresponding one of the corresponding nearby points Dwc . dnc and dtc , EFL in equation 2 represents a focal length of each of the units 30w . 30n and 30t as in the example of equation 1. Pc in equation 2 represents a pixel pitch of multiple pixels in the image acquisition device 511 the imager unit 51 according to one of the units 30w . 30n and 30t of the imaging system 50 , The pixel pitch pc is set, for example, to a pitch of an array pitch of the respective pixels, in the vertical direction and the lateral direction of the image acquisition device 511 are the same or are common to these directions. FNO in Equation 2 represents an F number of each of the units 30w . 30n and 30t , The F number is also referred to as an F value. In detail, the F number is a composite F number of each of the lenses 34w . 34n . 34t and their subsequent lens set. Dc is represented in the equation a diameter of a circle of confusion in the image acquisition device 511 the imager unit 51 according to one of the units 30w . 30n and 30t in the imaging system 50 ,

operational effects

The operation effects of the first embodiment described above will be described below.

According to the first embodiment, the lens units 30 The first to fourth noted sets are configured so that at least two of the viewing angles θw . θn and θt cover each other. The viewing angles θw . θn and θt are different from each other and are around the optical axes Aw . On and At , The optical axes Aw . On and At are shifted from each other. According to the first to fourth noted sets described above, the lens units overlap in the positioning structure 30 that configure the notated sets with each other when viewed in the vertical direction of the vehicle 2 considered. The first to fourth noted sets contain at least two of the optical axes Aw . On and At close to each other in the lateral direction of the vehicle 2 , According to the configuration, as shown in (a) to (c) in FIG 6 you can see the external images individually through the respective lens units 30 which belong to the first to fourth noted sets generated. In the external images, there is probably not a large shift in the lateral direction of the position coordinates of the pixels, the same sections pw . pn and Pt reflect, with respect to the respective optical axes Ax . On and At , Therefore, the configuration enables image position accuracy of mapping the external environment through the respective lens units 30 to improve the first to fourth noted sets in the lateral direction. Herein, in view of, in particular, the second noted set, the high image position accuracy described above can be achieved by the telescope unit 30t from or with the viewpoint θ and the wide-angle unit 30w from the viewpoint θw. The telescope unit 30t has the point of view θt that's narrower than the angle θw is. The telescope unit 30t is another narrow angle unit that comes from the narrow angle unit 30n is different.

In addition, according to the first to fourth noted sets of the first embodiment, at least two of the optical axes Aw . On and At the lens units 30 belonging to the notated sets, especially decentered in the vertical direction. According to the configuration arises in the through the respective lens units 30 that configure the first to fourth notated sets, respectively generated external images are unlikely to shift in particular the lateral direction of the position coordinates of the pixels having the same positions pw . pn and Pt reflect. Therefore, the configuration ensures high image position accuracy in mapping the external environment with a small shift correction amount in the lateral direction.

Further, according to the first and third noted sets in the first embodiment, two of the depth of field detections overlap dw . dn and dt the lens units 30 to each other, to the overlapping regions Rnw and Rtn when viewed in the vertical direction. The configuration forms the external environment through the respective lens units 30 Configure the first and third noted sets, starting to take a picture in a wide range, covering the coverage areas Rnw and Rtn contains, and makes it possible to improve an image position accuracy in the lateral direction.

According to the first embodiment, the optical axes Aw and An are each other in the lateral direction with the positioning structure in which the wide-angle unit 30w with the wide angle of view θw and the narrow angle unit 30n with the narrow blinking angle θn as the lens units 30 The first and fourth noted sets overlap each other when viewed in the vertical direction. According to the configuration arises in the single by the wide-angle unit 30w and the narrow angle unit 30n generated external images probably not a large side shift of the position coordinates of the pixels, the same positions pw and pn reflect. In the configuration, the external image passes through the narrow angle unit 30n and the wide-angle unit 30w by. The wide angle unit 30w has depth of field detection dw in which the distant point dwf on the lower or more distant side behind the near point dnc depth of field detection dn is fixed to the image in a wide area covering the coverage area Rnw from these depth of field recognitions contains, to focus. In this way, the configuration makes it possible to improve the image position accuracy by imaging the outside environment in the lateral direction.

According to the first embodiment, the wide-angle unit overlap 30w , the narrow angle unit 30n and the telescope unit 30t which is narrower than the wide and narrow angle units at the angle of view θt, than the lens units 30 of the fourth note set when viewed in the vertical direction. With this positioning structure are the optical axes Aw . On and At close to each other in the lateral direction. According to the configuration, the external images are separated by the wide-angle unit 30w , the narrow angle unit 30n and the telescope unit 30t generated. In the generated external images, there is probably not a large lateral shift in the position coordinates of the pixels, the same positions pw . pn and Pt reflect. The configuration causes the external image, through the telescope unit 30t , the narrow angle unit 30n with depth of field detection dn and the wide-angle unit 30w with depth of field detection dw as described above, to cover the image in a wide area covering the coverage areas Rtn and Rnw contains the respective two of these depth of field detections to focus. In depth of field detection dn becomes the distant point dnf on the lower or more distant side behind the near point dtc depth of field detection dt set. In this way, the configuration makes it possible to improve the image position accuracy in the lateral direction in mapping the external environment.

According to the first embodiment, in the depth of field detections dn and dw the lens units 30 that configure the first noted set, in which the viewing angles θn and θw cover each other, another distant point dwf between a near point dnc and a distant point dnf in the external environment 5 set. In this way, the configuration forms the region Rnw in which the depth of field identifications dn and dw cover each other. A distant point dnf and the other distant point dwf In the first noted set, boundary positions of image recognition defined by mapping the outside environment individually through the respective lens units 30 is implemented. According to the configuration, they overlap in the respective lens units 30 Focus detections dn and dw together in the first recorded set. In any of the exterior images passing through the respective lens units 30 can be generated, an object that is relatively in the overlap region Rnw moved to be distinguished with an image recognition. The external image is a result of mapping the external environment through the respective lens units 30 of the first recorded set. The configuration makes it possible to lose an object in the outer image in the region Rnw in which are the respective depth of field detections dn and dw cover each other, restrict.

In addition, according to the first embodiment, another distant point becomes dnf in the depth of field detections dt and dn the lens units 30 that configure the third noted set, in which the viewing angles θt and θn cover each other, fixed. The distant point dnf gets between a near point dtc and a distant point dtf in the external environment 5 thus constituting the region Rtn in which the depth of field detections are formed dt and dn cover each other. A distant point dtf and the other distant point dnf In the third noted set, boundary positions of image recognition defined by mapping the outside environment individually through the respective lens units 30 is implemented. According to the configuration, depth of field detections overlap dt and dn together in the third recorded set. The configuration with an image recognition allows the object to be relative to the coverage region Rtn in any of the external images moved by the respective lens units 30 be distinguished. Therefore, the configuration makes it possible to lose the object in the outside image in the region Rtn in which are the respective depth of field detections dt and dn cover each other, restrict. The external image is a result of mapping the external environment through the respective lens units 30 of the third recorded set.

Furthermore, according to the first embodiment, the lens units satisfy 30 configuring the first and third noted sets, the above equation 1 with the respective distant points dwf . dnf and dtf as the corresponding distant points. According to the configuration, the respective remote points dwf . dnf and dtf in the first and third noted sets precisely define boundary positions of the image recognition. The image recognition is made by mapping the external environment through the respective lens units 30 implemented. Therefore, in the coverage regions Rnw and Rtn to ensure reliability of the effect of restricting the loss of an object caused due to image recognition failure.

Furthermore, according to the first embodiment, the lens units satisfy 30 belonging to the first and third noted sets, the above equation 2 with the respective near points Dwc . dnc and dtc as the corresponding near points. According to the configuration, it will be in the respective near points Dwc . dnc and dtc in the first and third noted sets, allows imaging boundary positions in which the image is formed by mapping the external environment through the respective lens units 30 focused, precise definition. Therefore, in the coverage regions Rnw and Rtn to ensure a reliability of the effect of limiting the loss of an object caused by a picture failure.

Second embodiment

As it is in 7 As can be seen, a second embodiment is a modification of the first embodiment. In the second embodiment, a positioning ratio of a wide-angle unit 2030W , a narrow angle unit 2030n and one telescopic unit 2030t as lens units 2030 different from that in the embodiment.

The narrow angle lens 34n , which is the front end of the narrow angle unit 2030n is fixed, without significant side shift on the upper side of the wide-angle lens 34w , which is the front end of the wide-angle unit 2030W forms. The narrow angle lens 34n is to the rear side of the wide-angle lens 34w postponed. In this example, the optical axis is At the narrow angle unit 2030n decentered from the optical axis Aw of the wide-angle unit 2030W in particular a substantially vertical direction or vertical direction. The configuration directs these positions with the optical axis Aw in the lateral direction of the vehicle 2 out. In the configuration is, the farther the front windshield 3 approaching the front, the farther the front windshield 3 inclined to the lower side on the lower or more distant side. The wide angle unit 2030W protrudes to the lower or more distant side behind the upper narrow angle unit 2030n out.

The telescope lens 34t , which is the front end of the telescope unit 2030t is fixed, without significant side shift on the upper side of the narrow-angle lens 34n , The telescope lens 34t is to the rear side of the narrow angle lens 34n postponed. In this example, the optical axis is At the telescope unit 2030t from both the respective optical axes Aw and at the wide angle unit 2030W as well as the narrow angle unit 2030n decentered in the substantially vertical direction or vertical direction. The configuration directs these positions with both of the optical axes Aw and On in the lateral direction of the vehicle 2 out. In the configuration, the narrow angle unit protrude 2030n and the wide-angle unit 2030W to the lower or more distant side behind the upper telescope unit 2030t out.

In the second embodiment, a vertical wall section protrudes 2210 the upper cladding member 21 gradually in the camera panel 20 out. The further the vertical wall section 2210 approaching the lower side, the further the vertical wall section protrudes 2210 stepwise toward the lower side on the front side, according to the positioning ratio in which the units 2030W . 2030n and 2030t are shifted in the longitudinal direction. Each of the units 2030W . 2030n and 2030t has individually the lens window 211 passing through the vertical wall section 2210 goes through and one of the units to the outside of the camera panel 20 vacant.

In the second embodiment described above, the first to fourth notated sets are assumed to be the notated sets in which the respective lens units 2030 at least partially overlap with each other when viewed in the vertical direction. More specifically, the first recorded set contains the wide-angle unit 2030W and the narrow angle unit 2030n overlapping each other when viewed in the vertical direction. The second notated set contains the wide-angle unit 2030W and the telescope unit 2030t overlapping each other when viewed in the vertical direction. The third notated set contains the narrow angle unit 2030n and the telescope unit 2030t overlapping each other when viewed in the vertical direction. The fourth notated set contains the wide-angle unit 2030W , the narrow angle unit 2030n and the telescope unit 2030t overlapping each other when viewed in the vertical direction.

According to the first and fourth noted sets according to the second embodiment as described above, the farther the wide angle unit projects 2030W approaching the lower side, the farther the wide-angle unit 2030W from the upper narrow angle unit 2030n to the lower or more distant side of the front windshield 3 which is inclined to stand out. According to the configuration, the travel between each of the units becomes wide-angle unit 2030W and narrow angle unit 2030n , and the front windshield 3 narrowed as much as possible, to cause both of the units, an excessive light incidence in the viewpoints θw and θn through the scope to reduce. In addition, the wide-angle unit protrudes 2030W to the lower or more distant side behind the narrow angle unit 2030n out. The configuration allows penetration of the narrow angle unit 2030n in the wide viewing angle θw of the wide-angle unit 2030W to restrict. From this viewpoint, the configuration enables the image position precision in imaging the outside environment in the lateral direction by the wide-angle unit 2030W and the narrow angle unit 2030n to improve, without limitation due to excessive light and an impairment of both of these units with each other.

In the second and fourth noted sets according to the second embodiment, the farther the front windshield 3 approaching the lower side, the farther the front windshield 3 inclined to the lower or more distant side. The wide angle unit 2030W protrudes from the upper telescope unit 2030t to the lower or more distant side of the front windshield 3 out. According to the configuration, the travel between each of the units is wide-angle unit 2030W and telescope unit 2030t , and the front windshield 3 as much as possible narrows to cause both of the units to have an excessive amount of light in the viewpoints θw and θt by reducing the scope to reduce. In addition, the wide-angle unit protrudes 2030W to the deeper or more distant side behind the telescope unit 2030t out. Therefore, the configuration allows penetration of the telescope unit 2030 in the wide angle θw the wide angle unit 2030W to restrict. From the above viewpoint, the configuration enables image position precision in imaging the outside environment in the lateral direction by the wide-angle unit 2030W and the telescope unit 2030t without limitation due to excessive light and deterioration of both of these units with each other. In particular, in view of, in particular, the second noted set, the exterior environment mapping described above may be with the telescope unit 2030t in which the angle of view θt is narrower than the angle of view θw is, and the wide-angle unit 2030W from or with the viewpoint θw be achieved. The telescope unit 2030t is another narrow angle unit than the narrow angle unit 2030n ,

According to the third and fourth noted sets according to the second embodiment, the narrow angle unit protrudes 2030n from the upper telescope unit 2030t to the lower or more distant side of the front windshield 3 out. The further the front windscreen 3 approaching the lower side, the farther the front windshield is 3 inclined to the lower or more distant side. According to the configuration, the margin between each of the units is narrow angle unit 2030n and telescope unit 2030t , and the front windshield 3 as much as possible narrows to cause both of the units to have an excessive amount of light in the viewpoints θn and θt through the scope to reduce. In addition, the narrow angle unit protrudes 2030n to the deeper or more distant side behind the telescope unit 2030t out. Therefore, the configuration allows penetration of the telescope unit 2030t in the viewpoint θn the narrow angle unit 2030n to restrict. From the above viewpoint, the configuration enables image position precision in imaging the outside environment in the lateral direction by the narrow angle unit 2030n and the telescope unit 2030t without limitation due to excessive light and deterioration of both of the units with each other. In particular, in the fourth noted set penetration of the telescope unit 2030t not only in the inside of the wide viewing angle θw but also in the inside of the viewing angle θn are limited, wherein the angle of view θn narrower than the angle of view θw but further than the angle θt the telescope unit 2030t is. Therefore, the configuration makes it possible to generate the outer-environment mapping by all of the units.

Incidentally, the wide-angle unit 2030W , the narrow angle unit 2030n and the telescope unit 2030t of the second embodiment substantially identical to those of the first embodiment in or with the wide-angle unit 30w , the narrow angle unit 30n and the telescope unit 30t except for the configurations described above. Even more specifically, even in the second embodiment, in which the longitudinal positions of the respective units 2030W . 2030n and 2030t shifted, the depth of field detections dw . dn and dt in the same manner as those set in the first embodiment. From the above viewpoints, the first to fourth notated sets according to the second embodiment enable the same operation effects as those in the first to fourth notated sets of the first embodiment to be produced.

Third embodiment

As it is in 8th to 10 is illustrated, a third embodiment is a modification of the first embodiment. In the third embodiment, a positioning ratio of a wide-angle unit 3030w , a narrow angle unit 3030n and a telescope unit 3030t as lens units 3030 different from that in the first embodiment.

As it is in 8th and 10 can be seen is the narrow angle lens 34n , which is the front end of the narrow angle unit 3030n forms, fixed, and Although without significant longitudinal displacement on the upper side of the wide-angle lens 34w , which is the front end of the wide-angle unit 3030w forms. The narrow angle lens 34n is to one side (that is, the left side in 10 ) in the longitudinal direction from the wide-angle lens 34w postponed. In this example, the optical axis is On the narrow angle unit 3030n in both the vertical direction and the lateral direction decentered from the optical axis Aw of the wide-angle unit 3030w , With the configuration, the wide-angle unit stands out 2030W or. 3030w not essential from the upper narrow angle unit 2030n or. 3030n towards the lower or more distant side, with the further the front windscreen 3 approaching the lower side, the farther the front windshield is 3 inclined towards the front on the lower or more distant side.

As it is in 9 and 10 you can see, is the telescope lens 34t , which is the front end of the telescope unit 3030t forms, fixed, without significant longitudinal displacement on the upper side of the wide-angle lens 34w , However, the telescope lens is 34t to the other side of the wide-angle lens 34w in the lateral direction (that is, the right side in 10 , the narrow angle unit 3030n across). In this example, the optical axis At of the telescope unit 3030t in both the vertical direction and the lateral direction decentered from the optical axis Aw of the wide-angle unit 3030w , In addition, the optical axis At of the telescope unit 30t decentered from the optical axis At the narrow angle unit 3030n in particular the substantially lateral direction or lateral direction. In this way, the configuration directs the optical axis At with the optical axis An in the vertical position of the vehicle 2 out. The wide-angle unit protrudes in the configuration 3030w not essential from the upper telescope unit 3030t and the lateral narrow angle unit 3030n to the deeper or more distant side out.

In the third embodiment described above, the first and second noted sets are adopted as the notated sets in which the respective lens units 3030 at least partially overlap with each other when viewed in the vertical direction. The third recorded set is assumed to be the noted set in which the lens units 3030 cover each other when viewed in the lateral direction. More specifically, the first recorded set contains the wide-angle unit 3030w and the narrow angle unit 3030n overlapping each other when viewed in the vertical direction. The second notated set contains the wide-angle unit 3030w and the telescope unit 3030t overlapping each other when viewed in the vertical direction. The third notated set contains the narrow angle unit 3030n and the telescope unit 3030t that overlap each other when viewed in the lateral direction.

In the first and second notated sets according to the third embodiment, the respective two of the optical axes overlap Aw . On and At the lens units 3030 with each other when viewed in the vertical direction, and are decentered in both the vertical direction and the lateral direction. The configuration limits the page shift of the position coordinates of the pixels that occupy the same places pw . pn and Pt in the respective external images, through the respective lens units 3030 be generated reflect. In addition, although the physical amount increases in the vertical direction due to the restriction of the side shift, the configuration makes it possible to ensure the degree of freedom of positioning for reducing, for example, the increase in physical size, with the respective lens units 3030 Configure the first and second noted sets. Therefore, the configuration makes it possible to ensure a high image position accuracy in the lateral direction while the field of view of a non-prescribed occupant in the vehicle 2 ensured in the lateral direction. In particular, considering the particular set noted in the second, the telescopic unit makes it possible 3030t from or with the viewpoint θt which is narrower than the viewing angle θw and the wide-angle unit 3030w from viewpoint θw, to ensure the field of view and to ensure the accuracy described above, the telescope unit 3030t another narrow angle unit than the narrow angle unit 3030n is.

Furthermore, according to the third embodiment, the narrow angle unit belongs 3030n to the first recorded set and belongs to the telescope unit 3030t to the second recorded set. The narrow angle unit 3030n and the telescope unit 3030t belong to the third noted set, which is different from the first noted set and the second noted set. The narrow angle unit 3030n and the telescope unit 3030t overlap each other when viewed in the lateral direction. Additional are the optical axes On and At decentered from each other in the lateral direction. The configuration makes it possible to improve the effect of ensuring the occupant's field of view while inhibiting as much as possible the increase in the physical quantity in the vertical direction caused by the restriction of the side shift.

Incidentally, the wide-angle unit 3030w , the narrow angle unit 3030n and the telescope unit 3030t according to the third embodiment, substantially identical to corresponding ones of the wide angle unit 30w , the narrow angle unit 30n and the telescope unit 30t the first embodiment except for the above-described configurations. More specifically, in the third embodiment, the narrow angle unit 3030n and the telescope unit 3030t Side by side on the upper side of the wide-angle unit 3030w aligned. Even in the configuration, the depth of field detections become dw , dn and dt set in the same manner as those in the first embodiment. From the above viewpoints, the first and second notated sets according to the third embodiment enable the same operation effects as those in the first and second noted sets of the first embodiment to be produced.

Fourth embodiment

As it is in 11 As can be seen, a fourth embodiment is a modification of the first Embodiment. In the fourth embodiment, the setting of the depth of field detection is dw for a wide-angle unit 4030w the lens units 30 different from that in the first embodiment.

The distant point dwf the wide angle unit 4030w defines depth of field detection dw within the wide angle θw , The distant point dwf becomes on the lower or more distant side behind the near point dtc the telescope unit 30t set. The near point Dtc defines the depth of focus detection dt within the angle of view θt, which is narrower than the angle of view θw. In addition, the distant point becomes dwf the wide angle unit 4030w on the near side of the distant point dtf the telescope unit 30t set. These settings become the distant point dwf the wide angle unit 4030w between the near point dtc and the distant point dtf the telescope unit 30t positioned. This is how the units form 30t and 4030w the region rtw in which the depth of field identifications dt and dw cover each other. In the above-described fourth embodiment, in particular, the second noted set includes the wide-angle unit 4030w and the telescope unit 30t which overlap with each other when viewed in the vertical direction, as in the first embodiment.

Furthermore, according to the second noted set in the fourth embodiment, the respective depth of focus detections overlap dt and dw the lens unit 30 when viewed in the vertical direction, and form an overlap region rtw , The configuration focuses the image in a wide area including the overlap region Rtw and forms the external environment through the respective lens units 30 belonging to the second noted set. In this way, the configuration makes it possible to improve an image position accuracy in the lateral direction.

According to the fourth embodiment, the wide-angle unit overlap 4030w with the wide angle θw and the telescope unit 30t with the narrow angle θw that the lens units 30 of the second noted set, with each other when viewed in the vertical direction. With the positioning structure are the optical axes Aw and On close to each other in the lateral direction. According to the configuration arises in the through the wide-angle unit 4030w and the telescope unit 30t The external images generated probably do not have a large shift in the position coordinates of the pixels, the same sections pw and Pt reflect, in the lateral direction. In depth of field detection dw becomes the distant point dwf on the lower or more distant side behind the near point dtc depth of field detection dt set. Therefore, the configuration allows the external image through the telescope unit 30t and the wide-angle unit 4030w to focus in a wide range containing the coverage region Rtw from these depth-of-focus detections. In this way, the configuration makes it possible to improve the image position accuracy in imaging the outside environment in the lateral direction. As described above, in the fourth embodiment, the telescopic unit 2030t another narrow angle unit than the narrow angle unit 30n , The second recorded set contains the telescope unit 2030t in which the angle of view θt is narrower than the angle of view θw is, and the wide-angle unit 4030w from or with the angle of view θw. The second noted set makes it possible to generate the outer-environment mapping described above.

Incidentally, the wide-angle unit 4030w of the fourth embodiment substantially identical to the wide-angle unit 30w the first embodiment except for the above-described configurations. Therefore, the first to fourth notated sets according to the fourth embodiment make it possible to produce the same operation effects as those in the first to fourth notated sets of the first embodiment.

Fifth embodiment

As it is in 12 5, a fifth embodiment is a modification of the fourth embodiment. In the fifth embodiment, the setting of the depth of field detection is dw for a wide-angle unit 5030w the lens units 30 different from that in the fourth embodiment.

The wide angle unit 5030w defines depth of field detection dw within the wide angle θw , The narrow angle unit 30n defines depth of field detection dn within the perspective θn that's narrower than the angle θw is. The near point Dwc the wide angle unit 5030w becomes on the lower or more distant side behind the near point dnc the narrow angle unit 30n set. In addition, the distant point becomes dwf the wide angle unit 5030w on the near side of the distant point dnf the narrow angle unit 30n set. With these settings, both the near point Dwc as well as the distant point dwf the wide angle unit 5030w between the near point dnc and the distant point dnf the narrow angle unit 30n positioned. This is how the units form 30n and 5030w the region Rnw in which the depth of field identifications dn and dw cover each other. In the above-described fifth embodiment, in particular, the second noted set includes the wide-angle unit 5030w and the telescope unit 30t that overlap each other, though when viewed in the vertical direction, as in the fourth embodiment.

The wide angle unit 5030w The fifth embodiment is substantially identical to the wide-angle unit 4030 of the fourth embodiment except for the above-described configurations. Therefore, the first to fourth notated sets according to the fifth embodiment make it possible to produce the same operation effects as those in the first to fourth notated sets according to the fourth embodiment.

Sixth embodiment

As it is in 13 to 18 is illustrated, a sixth embodiment is a modification of the first embodiment. In the sixth embodiment, a positioning ratio of a wide angle unit 6030w , a narrow angle unit 6030n and a telescope unit 6030t as lens units 6030 different from that in the first embodiment.

As it is in 13 . 14 . 16 and 18 can be seen is the narrow angle lens 34n , which is the front end of the narrow angle unit 6030n forms, fixed, without significant vertical displacement of the wide-angle lens 34w , which is the front end of the wide-angle unit 6030w forms. The narrow angle lens 34n is from the wide-angle lens 34w on the front end and one side (that is, a left side in 18 ) in the lateral direction as the side of the external environment 5 postponed. In this example, the optical axis is On the narrow angle unit 6030n substantially in the lateral direction from the optical axis Aw of the wide-angle unit 6030w decentered.

As it is in 15 . 16 and 18 you can see, is the telescope lens 34t , which is the front end of the telescope unit 6030t forms, fixed, without significant vertical displacement of the wide-angle lens 34w , The telescope lens 34t is from the wide-angle lens 34w to the front end on the side of the outside environment 5 postponed. The telescope lens 34t is further from the wide-angle lens 34w to the other side (that is, the right side in 18 ) shifted in the lateral direction. In this example, the optical axis At of the telescope unit 6030t substantially in the lateral direction of both the optical axis Aw of the wide-angle unit 6030w as well as the optical axis At the narrow angle unit 6030n decentered.

In the sixth embodiment described above, a vertical wall portion 6210 an upper panel member 21 the camera panel 20 who in 13 to 16 can be seen, formed to meet a positioning ratio in which the respective units 6030w . 6030n and 6030t shifted from each other in the longitudinal direction, as described above. In particular, the further the vertical wall section projects 6210 approaching both of its right and left lateral sides from its central portion in the lateral direction, the further the vertical wall portion 6210 diagonally to the front on the side of the external environment 5 (that is, the lower side described in the first embodiment). The lens windows 6211w . 6211n and 6211t are formed individually for each of the units. The lens windows 6211w . 6211n and 6211t penetrate through the vertical wall section 6210 through and put the respective units 6030w . 6030n and 6030t to the outside of the camera panel 20 free. In this example, the vertical positions are the lens windows 6211w . 6211n and 6211t according to the respective units 6030w . 6030n and 6030t aligned with each other. In addition, the longitudinal positions of the lens windows 6211n and 6211t according to the narrow angle unit 6030n and the telescope unit 6030t respectively aligned with each other in a state in which they from the longitudinal position of the lens window 6211w according to the wide angle unit 6030w are shifted.

In the above-described sixth embodiment, the first to fourth notated sets are assumed to be the notated sets in which the respective lens units 6030 cover each other when viewed in the lateral direction. More specifically, the first recorded set contains the wide-angle unit 6030w and the narrow angle unit 6030n that overlap each other when viewed in the lateral direction. The second notated set contains the wide-angle unit 6030w and the telescope unit 6030t that overlap each other when viewed in the lateral direction. The third notated set contains the narrow angle unit 6030n and the telescope unit 6030t that overlap each other when viewed in the lateral direction. The fourth notated set contains the wide-angle unit 6030w , the narrow angle unit 6030n and the telescope unit 6030t that overlap each other when viewed in the lateral direction.

Incidentally, the wide-angle unit 6030w , the narrow angle unit 6030n and the telescope unit 6030t according to the above-described sixth embodiment, substantially identical to corresponding ones of the wide-angle unit 30w , the narrow angle unit 30n and the telescope unit 30t the first embodiment except for the above-described configurations. Even more specifically, even in the sixth embodiment, in which the longitudinal positions of the respective units 6030w . 6030n and 6030t shifted, the depth of field detections dw . dn and dt in the same manner as those set in the first embodiment.

Therefore, the first and third noted sets according to the sixth embodiment make it possible to produce the operation effects except for an image position accuracy in the lateral direction in the same manner as those in the first and third noted sets of the first embodiment. In addition, the first to fourth notated sets, as the operation effects inherent in the sixth embodiment, enable the image position accuracy in the lateral direction to be ensured by correcting the displacement of the position coordinates. In particular, in view of, in particular, the second noted set, the telescope unit makes it possible 6030t from or with the viewpoint θt and the wide-angle unit 6030w from the viewpoint θw to ensure the accuracy as described above, wherein the telescope unit 6030t another narrow angle unit than the narrow angle unit 6030n and has the view angle θt narrower than the view angle θw.

As it is in 13 to 17 is seen in the sixth embodiment according to the positioning ratio of the respective lens units 6030 a pair of sidewall sections 6043 in each structure different from that in the first embodiment. The pair of sidewall sections 6043 is on both sides of an image space 410 provided. In a hood 6040 is the picture space 410 on the upper side of the base wall portion 41 ,

Each of the sidewall sections 6043 is symmetrical with respect to the optical axis Aw the wide angle unit 6030w provided. The wide angle unit 6030w is located at a center of the lens units 6030 which are aligned in the lateral direction. Each of the sidewall sections 6043 which is in a straight plate-like shape is with respect to the optical axis Aw the unit 6030w to the outer lateral side according to the wide angle θw the unit 6030w inclined when the side wall portion 6043 from the environment of the wide-angle unit 6030w to the front on the side of the outside environment 5 extends. In each of the sidewall sections 6043 is a trapezoidal flat inner wall surface 6043a formed around a taper line of the angle of view θw out of sight θw spread like it is in 17 can be seen when looking at it in the vertical direction (that is, when viewed in the horizontal plane) of the vehicle 2 considered that is on the horizontal plane. In this way, the respective angles are θn and θt the narrow angle unit 6030n and the telescope unit 6030t that are narrower than the angle θw the wide angle unit 6030w are partially within the viewing angle θw in the interior of the imaging space 410 if you look at it in the vertical direction.

As it is in 13 . 16 and 17 can be seen, a wide-angle exposure window opens 6431w between rear ends of the sidewall portions 6043 on the front of the lens window 6211w of the vertical wall section 6210 , The front end of the wide-angle unit 6030w on the side of the external environment 5 penetrates from the inside of the lens window 6211w into the inside of the wide-angle exposure window 6431w on. The front end of the wide-angle unit 6030w is still outside the pictorial space 410 , This sets the wide-angle exposure window 6431w the wide angle unit 6030w to the picture room 410 free.

As it is in 13 to 17 can be seen, a narrow-angle exposure window opens 6431n on the front of the lens window 6211n of the vertical wall section 6210 in a first side wall section 6432 , The first side wall section 6432 is a part of a sidewall section 6043 on one side in the lateral direction. The vertical position of the narrow angle exposure window 6431n is with the wide-angle exposure window 6431w aligned. The front end of the narrow angle unit 6030n on the side of the external environment 5 penetrates from the inside of the lens window 6211n into the inside of the narrow angle exposure window 6431n on. The front end of the narrow angle unit 6030n is still outside the pictorial space 410 , This is how the Narrow Angle View window lays 6431n the narrow angle unit 6030n to the picture room 410 free.

As it is in 15 to 17 can be seen, a telescope exposure window opens 6431t on the front of the lens window 6211t of the vertical wall section 6210 in a second side wall section 6433 , The second side wall section 6433 is a part of the sidewall section 6043 on the other side in the lateral direction. The vertical position of the telescope view window 6431t is with the wide-angle exposure window 6431w and the narrow angle exposure window 6431n aligned. In addition, the longitudinal position of the telescope exposure window 6431t with the narrow angle exposure window 6431n aligned in a state in which the longitudinal direction of the wide-angle exposure window 6431w is moved. In this example, the front end of the telescope unit penetrates 6030t on the side of the external environment 5 from the inside of the lens window 6211t in the inside of the Telescopic exposure window 6431t on. The front end of the telescope unit 6030t is still outside the pictorial space 410 , This is how the telescope exposure window lays 6431t the telescope unit 6030t to the picture room 410 on the front of the wide-angle unit 6030w on the side of the external environment 5 towards and directly next to the narrow angle unit 6030n free.

The hood 6040 according to the sixth embodiment is substantially identical to the hood 40 the first embodiment except for the above-described configurations. That's why according to the hood 6040 of the sixth embodiment on the lateral side of the imaging space 410 for directing an optical image within the map target range to the units 6030w and 6030n the lens units 6030 there is the first sidewall section 6432 according to the angle of view θw of the wide-angle unit 6030w from the environment of the wide-angle unit 6030w inclined to the side of the external environment. The first side wall section 6432 is one of the pair of sidewall sections 6043 , The units 6030w and 6030n belong to the first and fourth noted sets. More specific is in the hood 6040 the sixth embodiment, the first side wall portion 6432 in a tilted state, extending along the viewing angle θw the wide angle unit 6030w spreads. In this example, it opens in the first sidewall section 6432 the narrow angle exposure window 6431n on the side of the external environment of the wide-angle unit 6030w to the narrow angle unit 6030n to the picture room 410 to expose. According to the configuration, the angle of view θn of the narrow angle unit drops 6030n into the inside of the viewing angle θw of the wide-angle unit 6030w indicating the inclination of the first sidewall section 6432 Regulated to the picture space 410 to divide between both of these units. Therefore, a formation area of the first sidewall portion is 6432 in which is the narrow angle exposure window 6431n in the inclined state, opens to a required range for the wide-angle unit 6030w limited. In this way, the configuration allows the size of the camera module 1 that the hood 6040 contains, reduce.

In the first and fourth notated sets according to the sixth embodiment, the front end of the narrow angle unit is located 6030n on the side of the external environment 5 outside the picture room 410 , Therefore, the narrow angle unit penetrates 6030n probably not in the inside of the viewpoint θw the wide angle unit 6030w on. In this way disturbs the narrow angle unit 6030n probably not and does not likely affect the imaging of the normal optical image of the external environment 5 in the map target area. In particular, the narrow angle unit interferes 6030n probably not and does not likely affect the outer-environment mapping, which can avoid loss of an object in the first recorded set.

According to the sixth embodiment, the front end of the narrow angle unit penetrates 6030n the first, third and fourth noted sets into the inside of the narrow angle exposure window 6431n on. The front end of the narrow angle unit 6030n is still outside the pictorial space 410 , According to the configuration, the narrow angle unit 6030n closer to the front windshield 3 brought to an incidence of excessive light in the angle of view θn by the margin between the element 6030n and the element 3 to restrict. Therefore, excessive light incidence probably does not interfere with the imaging of the normal optical image of the outside environment 5 in the map target area. In particular, excessive light incidence is unlikely to interfere with the exterior environment imaging, which may avoid loss of an object in the first recorded set.

In addition, according to the hood 6040 of the sixth embodiment on the lateral side of the imaging space 410 for directing an optical image within the map target range to the respective units 6030w and 6030t the lens units 6030 the second side wall section 6433 according to the angle of view θw of the wide-angle unit 6030w from the environment of the wide-angle unit 6030w inclined to the side of the external environment. The respective units 6030w and 6030t belong to the second and fourth noted sets. The second side wall section 6433 is one of the pair of sidewall sections 6043 , More specific is in the hood 6040 the sixth embodiment, the second side wall portion 6433 in a tilted state, extending along the viewing angle θw the wide angle unit 6030w spreads. In this example, it opens in the second sidewall section 6433 a telescope exposure window 6431 on the side of the external environment of the wide-angle unit 6030w to the telescope unit 6030t to the picture room 410 to expose. According to the configuration, the angle of view θt of the telescope unit drops 6030t in the inside of the angle θw the wide angle unit 6030w indicating the inclination of the second sidewall section 6433 Regulated to the picture space 410 to divide between both of these units. Therefore, a formation area of the second sidewall portion is 6433 for opening the telescope display window 6431t in the inclined state to a required range for the wide-angle unit 6030w limited. In this way it allows the Configuration, the size of the camera module 1 that the hood 6040 contains, reduce.

In the second and fourth noted sets according to the sixth embodiment, the front end of the telescope unit is located 6030t on the side of the external environment 5 outside the picture area 410 , Therefore, the telescope unit penetrates 6030t probably not in the inside of the viewing angle θw of the wide-angle unit 6030w on. In this way disturbs the telescope unit 6030t probably not and does not likely affect the imaging of the normal optical image of the external environment 5 within the map target range.

According to the sixth embodiment, the front end of the telescopic unit penetrates 6030t the second to fourth noted sets into the inside of the telescope reveal window 6431t on. The front end of the telescope unit 6030t is still outside the pictorial space 410 , According to the configuration, the telescope unit 6030t closer to the front windshield 3 be brought to an incidence of excessive light in the viewpoint θt through the margin between the element 6030t and the element 3 to restrict. Therefore, excessive light incidence probably does not interfere with the imaging of the normal optical image of the outside environment 5 within the map target range.

In particular, in view of, in particular, the second noted set, the reduction of a size and the imaging of the normal optical image in the telescope unit 6030t in which the point of view θt through the telescope exposure window 6431t narrower than the angle of view θw, as described above, can be achieved. The telescope unit 6030t is another narrow angle unit than the narrow angle unit 6030n , The telescope exposure window 6431t is another narrow angle exposure window than the narrow angle exposure window 6431n ,

Seventh embodiment

As it is in 19 to 21 8, a seventh embodiment is a modification of the first embodiment. In the seventh embodiment, the positioning position of a narrow angle unit 7030n and a telescope unit 7030t as the lens units 6030 different from that in the sixth embodiment.

As it is in 19 and 21 can be seen, penetrates the front end of the narrow angle unit 7030n on the side of the external environment 5 from the inside of a lens window 6211n and the inside of the narrow angle exposure window 6431n further into the picture room 410 on. This is the narrow angle exposure window 6431n the narrow angle unit 7030n to the picture room 410 free. In addition, as it is in 21 can be seen, a viewing angle θn the narrow angle unit 7030n which is narrower than the angle of view θw of the wide-angle unit 6030w is completely within the viewing angle θw in the interior of the imaging space 410 if you look at it in the vertical direction.

As it is in 19 and 21 can be seen has the narrow angle unit 7030n a reflection restriction section 7036n in its entire peripheral area and in its entire end surface area at a portion which is at least the front end of the narrow angle unit 7030n contains. The narrow angle unit 7030n penetrates into the picture space 410 and is exposed in this. The reflection restriction section 7036n For example, applying a black coating or paint to the narrow angle lens mount 32n the narrow angle unit 7030n educated. Incidentally, for example, when the narrow angle lens mount 32n itself made of a black material, the reflection restricting portion 7036n not necessarily provided.

As it is in 20 and 21 can be seen penetrates the front end of the telescope unit 7030t on the side of the external environment 5 from the inside of a lens window 6211t and the inside of the telescope view window 6431t further into the picture room 410 on. This is how the telescope exposure window lays 6431t the telescope unit 7030t to the picture room 410 on the front of the wide-angle unit 6030w on the side of the external environment 5 and right next to the narrow angle unit 7030n free. In addition, as it is in 21 can be seen, a viewing angle θt of the telescope unit 7030t which is narrower than the angle of view θw of the wide-angle unit 6030w is completely within the perspective θw inside the picture room 410 if you look at it in the vertical direction.

As it is in 20 and 21 can be seen has the telescope unit 7030t a reflection restriction section 7036t in its entire peripheral area and in its entire end surface area at a portion which at least the front end of the telescope unit 7030t that in the picture space 410 penetrates and is exposed in this contains. The reflection restriction section 7036t By, for example, applying a black coating or paint to the telescope lens mount 32t the telescope unit 7030t educated. Incidentally, for example when the telescope lens mount 32t even from a black one Material is made, the reflection restriction section 7036t not necessarily provided.

In the seventh embodiment described above, as in the sixth embodiment, the first to fourth notated sets are assumed to be the notated sets in which the respective lens units 6030 cover each other when viewed in the lateral direction. In particular, the first recorded set contains the wide-angle unit 6030w and the narrow angle unit 7030n that overlap each other when viewed in the lateral direction. The second notated set contains the wide-angle unit 6030w and the telescope unit 7030t that overlap each other when viewed in the lateral direction. The third notated set contains the narrow angle unit 7030n and the telescope unit 7030t that overlap each other when viewed in the lateral direction. The fourth notated set contains the wide-angle unit 6030w , the narrow angle unit 7030n and the telescope unit 7030t that overlap each other when viewed in the lateral direction.

According to the seventh embodiment described above, the front end of the narrow angle unit penetrates 7030n the first, third and fourth noted sets from the inside of the narrow angle exposure window 6431n in the picture room 410 on. According to the configuration, the margin between the narrow angle unit becomes 7030n and the front windshield 3 as much as possible narrows and the effect of reducing excessive light incidence in the view angle θn can be improved by the margin. Therefore, the imaging of the normal optical image can be the external environment 5 in the map target area, in particular, the outer-environment mapping, which can avoid a loss of an object in the first recorded set, can be achieved without being disturbed by excessive light.

Furthermore, according to the seventh embodiment, the front end of the narrow angle unit penetrates 7030n the first and fourth recorded sets into the picture space 410 on. At the front end of the narrow angle unit 7030n may be a reflection of light through the reflection restriction section 7036n be regulated. The configuration allows a penetration of reflected light on the front end of the narrow angle unit 7030n in the picture room 410 is reflected in the inside of the viewing angle θw of the wide-angle unit 6030w to restrict ,. Therefore, the imaging of the normal optical image can be the external environment 5 in the map target area, in particular, the outer-environment mapping, which can avoid loss of an object in the first recorded set, can be achieved without being disturbed by the reflected light.

According to the seventh embodiment, the front end of the telescope unit penetrates 7030t the second to fourth noted sets from the inside of the telescope exposure window 6431t in the picture room 410 on. According to the configuration, the clearance between the telescope unit becomes 7030t and the front windshield 3 as much as possible narrows and can reduce the effect of reducing excessive light incidence in the view θt be improved by the travel. Therefore, the imaging of the normal optical image can be the external environment 5 within the desired range of the image without being disturbed by an incidence of excessive light.

Further, according to the seventh embodiment, the front end of the telescope unit penetrates 7030t the second and fourth recorded sets into the picture space 410 on. At the front end of the telescope unit 7030t may be a reflection of light through the reflection restriction section 7036t be regulated. The configuration allows for an incidence of light on the front end of the telescope unit 7030t in the picture room 410 is reflected in the inside of the viewing angle θw of the wide-angle unit 6030w to restrict. Therefore, the imaging of the normal optical image can be the external environment 5 within the desired range of the image without being disturbed by an incident of reflected light.

In particular, in view of, in particular, the second noted set, the normal optical image as described above with the telescope unit 7030t in which the point of view θt is narrower than the angle of view θw. The telescope unit 7030t is another narrow angle unit than the narrow angle unit 7030n ,

Incidentally, the narrow angle unit 7030n and the telescope unit 7030t according to the seventh embodiment substantially identical to the narrow angle unit 6030n and the telescope unit 6030t of the sixth embodiment except for the above-described configurations. Therefore, according to the seventh embodiment, the first to fourth notated sets make it possible to produce the same operation effects as those in the first to fourth notated sets according to the sixth embodiment except for the operation effects on the positioning structure outside the imaging space 410 are related.

Eighth embodiment

As in 22 to 24 As can be seen, an eighth embodiment is a modification of the first Embodiment. In the eighth embodiment, the positioning position is a narrow angle unit 8030n and a telescope unit 8030t as lens units 6030 different from that in the sixth embodiment.

As it is in 22 and 24 can be seen, penetrates the front end of the narrow angle unit 8030n on the side of the external environment 5 in the lens window 6211n on. In addition, the front end of the narrow angle unit 8030n outside of the picture room 410 and this is inside inside the narrow-angle exposure window 6431n , This is how the Narrow Angle View window lays 6431n the narrow angle unit 8030n to the picture room 410 free. In addition, as it is in 24 can be seen, a viewing angle θn the narrow angle unit 8030n which is narrower than the angle of view θw of the wide-angle unit 6030w is partially within the viewing angle θw in the interior of the imaging space 410 if you look at it in the vertical direction.

As it is in 23 and 24 can be seen penetrates the front end of the telescope unit 8030t on the side of the external environment 5 in the lens window 6211t on. In addition, the front end of the telescope unit 8030t outside the picture room 410 and this is inside the telescope exposure window inside 6431t , This is how the telescope exposure window lays 6431t the telescope unit 8030t to the picture room 410 on the front of the wide-angle unit 6030w on the side of the external environment 5 and right next to the narrow angle unit 8030n free. In addition, as it is in 24 the viewing angle θt of the telescope unit can be seen 8030t which is narrower than the angle of view θw of the wide-angle unit 6030w is, partly within the perspective θw inside the picture room 410 if you look at it in the vertical direction.

In the above-described eighth embodiment, as in the sixth embodiment, the first to fourth notated sets are adopted as the notated sets in which the respective lens units 6030 cover each other when viewed in the lateral direction. More specifically, the first recorded set contains the wide-angle unit 6030w and the narrow angle unit 8030n that overlap each other when viewed in the lateral direction. The second notated set contains the wide-angle unit 6030w and the telescope unit 8030t that overlap each other when viewed in the lateral direction. The third notated set contains the narrow angle unit 8030n and the telescope unit 8030t that overlap each other when viewed in the lateral direction. The fourth notated set contains the wide-angle unit 6030w , the narrow angle unit 8030n and the telescope unit 8030t that overlap each other when viewed in the lateral direction.

The narrow angle unit 8030n and the telescope unit 8030t according to the eighth embodiment described above are substantially identical to the narrow angle unit 6030n and the telescope unit 6030t of the sixth embodiment except for the above-described configurations. Therefore, according to the eighth embodiment, the first to fourth notated sets make it possible to produce the same operation results as those in the first to fourth notated sets according to the sixth embodiment, except for the operation effects on the entrance structure into the exposure windows 6431n and 6431t are related.

Ninth embodiment

As it is in 25 to 32 For example, a ninth embodiment is a modification of the sixth embodiment. In the ninth embodiment are in a hood 9040 , in the 25 to 27 to see a pair of sidewall sections 9043 on both sides of the picture space 410 are provided, and a base wall portion 9041 , on a deeper side of the picture room 410 is provided in a structure different from those in the sixth embodiment, and these are in connection with the control functions of the vehicle 2 structured.

In the ninth embodiment, the control functions of the vehicle 2 according to a situation of the external environment 5 , in the 28 and 29 can be seen in the control circuit 55 or in an external circuit such as an ECU connected to the external connector 542 connected, installed. In this example, one of the control functions is a collision-restriction control of the vehicle 2 against a front obstacle 5a (For example, a pedestrian, a bicycle, another vehicle or the like), which is an object in the external environment 5 is. One of the control functions is a specific control Cs of the vehicle 2 , A specific example of the specific control Cs is an autonomous emergency breaking (AEB) system, which is a vehicle speed of the vehicle 2 automatically controls when an emergency control condition in which a time to collision (TTC) is near a few seconds or less is set, thereby forcibly driving the vehicle 2 to slow down or the like. In addition, one of the control functions is a driving control of the vehicle 2 in a locomotion track. One of the control functions is another control Ca of the vehicle 2 as the specific control Cs. A specific example of the other controller Ca is a lane keeping assistant (LKA, Lane Keeping Assistant), which determines the position of the vehicle 2 in the width direction of the locomotion track automatically controls to a displacement of the vehicle 2 from a lane marker 5b such as a track line, a yellow track line on a road surface or the like in the outside environment 5 to restrict.

As it is in 27 to 30 can be seen, falls a horizontal viewing angle of the external environment 5 which is responsible for the specific control Cs of the vehicle 2 is required in the map target range of the camera module 1 attached to the front windshield 3 is mounted. The horizontal viewing angle range is given by a first taper angle Θ1 with the optical axis Aw of the wide-angle unit 6030w which is a bisector when viewed in the vertical direction (that is, in a horizontal plane view) of the vehicle 2 viewed on the horizontal plane, defined. In this example, the first taper angle is Θ1 smaller than a horizontal viewing angle range of the viewing angle θw of the wide-angle unit 6030w which is defined about the optical axis Aw. For example, the first taper angle θ1 is set at an angle of 100 ° or more. For example, the first taper angle Θ1 is set at an angle at which the front obstacle 5a that the vehicle 2 preceded by 13 m or more, can be imaged when the TTC is equal to 2.4 seconds or more.

As it is in 31 and 32 can be seen, falls a vertical viewing angle of the external environment 5 which is responsible for the specific control Cs of the vehicle 2 is required in the map target range of the camera module 1 on the front windshield 3 is mounted. The vertical viewing angle range is represented by a sum of a first depression angle ψd1 and a first elevation angle ψe1 in the horizontal view (ie, side view) of the vehicle 2 , which is on the horizontal plane, defined. In this example, the sum of the first depression angle ψd1 and the first projection angle ψe1 is smaller than the vertical viewing angle range of the wide angle unit viewing angle θw 6030w , For example, the first depression angle ψd1 is set at an angle of 6 ° or less, or the like. For example, the first depression angle ψd1 is set to an angle at which the front obstacle 5a that the vehicle 2 preceded by 13 m or more, can be imaged when the TTC is equal to 2.4 seconds or more.

As it is in 28 5, a single imaging area Us, which is specialized for the specific control Cs, becomes according to the horizontal viewing angle range and the vertical viewing angle range of the external environment 5 , which are required for the specific control Cs determined. As it is in 27 . 28 . 30 and 32 is visible, becomes a first lower beam of light L1 assumed as a ray of light entering the wide-angle unit 6030w at the first taper angle Θ1 and at the first depression angle ψd1 of both right and left ends, use of a lowermost portion of the single imaging area Us penetrates. According to the above assumption, points where the first lower light rays L1 assigned to the specific controller Cs, the inner surface 3a the front windshield 3 of the vehicle 2 crossing imaginary, as the first imaginary intersections I1 , in the 27 . 30 and 32 can be seen, defined. As it is in 27 can be seen, each of the first imaginary intersections I1 an upper side of an intermediate portion between the front end and the rear end of the side wall portion 9043 assigned. In this way, each of the sidewall sections 9043 configured as follows.

The respective side wall sections 9043 define interior wall surfaces 9043a on the side of the wide-angle unit 6030w on the back side of the first imaginary intersections I1 in the vehicle 2 , The inner wall surfaces 9043a have small margins of both right and left taper lines of the first taper angle Θ1, respectively, on the outside. The right and left taper lines of the first taper angle θ1 respectively substantially overlap with the first lower light beams L1 , The respective side wall sections 9043 define the inner wall surfaces 9043a on the side of the external environment 5 the first imaginary intersections I1 on the front in the vehicle 2 , The inner wall surfaces 9043a have small margins of both the right and left taper lines of the first taper angle θ1, respectively, on the outside. In this example, the inner wall surfaces 9043a of the sidewall portion 9043 in a single plane by setting these inclination angles with respect to the optical axis Aw of the wide-angle unit 6030w continuously to be substantially equal to each other. In this way extend in the vehicle 2 the respective side wall sections 9043 from the environment of the wide-angle unit 6030w to the first imaginary intersections I1 and extend from the first imaginary intersections I1 to the side of the external environment 5 out. In addition, the respective side wall sections 9043 in a state where the inner wall surfaces 9043a along the taper lines at the first taper angle Θ1 are inclined and outside the first taper angle Θ1 are what the viewing angle θw of the wide-angle unit 6030w corresponds when viewed in the vertical direction. In that inclined state penetrate the respective side wall portions 9043 into the inside of the viewing angle θw when viewed in the vertical direction.

The respective side wall sections 9043 act as the first sidewall section 6432 and the second sidewall portion 6433 , in which the respective exposure windows 6431n and 6431t to open. In this example, the exposure windows are 6431n and 6431t according to the ninth embodiment respectively in inclined portions of the side wall portions 9043 on the side of the wide-angle unit 6030w the first imaginary intersections I1 open. That is, the exposure window 6431n and 6431t respectively on the first side wall section 6432 and the second sidewall portion 6433 are open.

In contrast, as it falls in 27 to 30 you can see the horizontal viewing angle range for the vehicle's other control Ca 2 is required in the imaging area of the external environment 5 , The horizontal viewing angle range is given by a second taper angle θ2 with the optical axis Aw of the wide-angle unit 6030w which is a bisector when viewed in the vertical direction of the vehicle 2 considered that is on the horizontal plane, defined. In this example, the second taper angle is θ2 even smaller than the first taper angle Θ1, which is smaller than the horizontal viewing angle range of the viewing angle θw of the wide-angle unit 6030w is. For example, the second taper angle θ2 is set at an angle of 50 ° or more and less than 100 °. For example, the second taper angle θ2 is set to an angle at which the lane mark 5b on a road surface that the vehicle 2 preceded by 8.5 m or more, can be mapped.

As it is in 31 and 32 can be seen, the vertical viewing angle range, which falls for the other control Ca of the vehicle 2 is required in the map target area of the outside environment 5 , The vertical viewing angle range is given by a sum of a second depression angle ψd2 and a second elevation angle ψe2 in the horizontal view of the vehicle 2 defined on the horizontal plane. In this example, the sum of the second depression angle θd2 and the second projection angle θe2 is smaller than the vertical angle of a viewing range of the viewing angle θw of the wide-angle unit 6030w , For example, the second depression angle θd2 is set at an angle of 6 ° or more and 12 ° or less. For example, the second depression angle ψd2 is set to an angle at which the lane marker 5b on the road surface, the vehicle 2 preceded by 8.5 m or more, can be mapped. The second depression angle ψd2 is greater than the first depression angle ψd1.

As it is in 28 5, a single imaging area Ua that is specialized for the other control Ca is determined according to the horizontal viewing angle range and the vertical viewing angle range of the external environment 5 , which are required for the other control Ca determined. As it is in 28 . 29 . 30 and 32 can be seen become second lower rays of light L2 assumed as light rays entering the wide-angle unit 6030w in the second taper angle θ2 and in the second depression angle θd2 of both right and left ends Uae of a lowermost portion of the single imaging area Ua. According to the above assumption, points where the second lower light rays L2 that are assigned to the other control Ca, the inner surface 3a the front windshield 3 of the vehicle 2 crossing imaginary, as second imaginary intersections I2 , in the 27 . 30 and 32 can be seen, defined. As it is in 27 can be seen, becomes the second imaginary intersections I2 an upper portion of the front end of the base wall portion 9041 thereby assigning the following configuration of the base wall section 9041 and the sidewall portions 9043 to create.

In the vehicle 2 forms on the side of the wide-angle unit 6030 that is, on the back side behind the second imaginary intersections I2 , the base wall section 9041 a bottom wall surface 9041A , The base wall section 9041 forms the bottom wall surface 9041A in an entire inside area and in predetermined outside areas. The entire inner side region and one of the predetermined outer side regions switch a corresponding one of the right and left taper lines of the second taper angle θ2 between. The right and left taper lines of the second taper angle θ2 overlap substantially with the respective second lower rays of light L2 , In this way, the base wall portion extends 9041 from the environment of the wide-angle unit 6030w to the second imaginary intersections I2 this extends and extends inside and outside the second imaginary intersections I2 in the vehicle 2 , In the base wall section 9041 the bottom wall surface extends 9041A to the small outer side portions of the taper lines of the first taper angle θ1 in the outer side portions of the second imaginary intersections I2 , In addition, the inner wall surfaces extend 9043a the respective side wall sections 9043 respectively to the small outer side portions of the taper lines of the first taper angle θ1 in the outer side portions of the second imaginary intersections I2 , With the configuration are the base wall section 9041 and the respective sidewall portions 9043 formed to be laterally outward behind the second imaginary intersections I2 to extend.

The hood 9040 according to the ninth embodiment is substantially identical to the hood 6040 the first embodiment except the configuration. According to the hood 9040 The ninth embodiment is propagated in the vehicle 2 the sidewall sections 9043 from the environment of the wide-angle unit 6030w to the imaginary intersections I1 out. According to the configuration, even in a case where the hood 9040 is formed small, an incidence of the lower rays of light L1 holding the front windshield 3 at the imaginary intersections L1 in the taper angle θ1 cross, probably not through the sidewall section 9043 blocked. The taper angle θ1 defines the horizontal viewing angle range in the imaging target range, the horizontal viewing angle range being smaller than the viewing angle θw of the wide-angle unit 6030w is. Therefore, the configuration allows the size of the camera module 1 that the hood 9040 Contains the taper angle θ1 which is capable of detecting the normal optical image to reduce.

According to the hood 9040 In the ninth embodiment, the sidewall portions are spread 9043 of the vehicle 2 along the taper angle θ1 outside the angle of rejuvenation θ1 on the side of the wide-angle unit 6030w the imaginary intersections I1 out. According to the configuration, the hood can 9040 that the rejuvenation angle θ1 guaranteed to be formed in a limited size. The configuration allows a size reduction of the camera module 1 that the hood 9040 Contains the taper angle θ1 ensures that is capable of detecting the normal optical image to promote.

According to the hood 9040 The ninth embodiment is propagated in the vehicle 2 the sidewall sections 9043 along the taper angle θ1 to the outside of the taper angle θ1 on the side, the taper angle θ1 probably not affected. The taper angle θ1 is through the sidewall sections 9043 ensures that differs from the wide-angle unit 6030w to the imaginary intersections I1 towards, that is, on the side of the external environment 5 behind the imaginary intersections I1 , spread. The sidewall sections 9043 are on the base wall section 9041 in a wide region on the side of the external environment 5 behind the imaginary intersections I1 elevated. The sidewall sections 9043 and the base wall portion 9041 is enabled in cooperation to block light before the light on the front windshield 3 is reflected, and to the penetration of light into the inside of the taper angle θ1 if it is on the front windshield 3 is reflected, restrict. Therefore, the configuration allows the effect of superimposing reflected light on the front windshield 3 to limit the normal optical light and impairing the imaging, without much hindering a reduction in size of the camera module 1 that the hood 9040 Contains the taper angle θ1 and capable of imaging the normal optical image.

Additionally block according to the hood 9040 of the ninth embodiment described above, the side wall portions 9043 hardly an incident of the lower rays of light L1 holding the front windshield 3 at the imaginary intersections I1 in the taper angle θ1 within the map target range. The taper angle θ1 is for the specific control Cs of the vehicle 2 required. Therefore, the configuration allows the size of the hood 9040 containing camera module 1 which is capable of reducing the normal optical image within the taper angle θ1 that for the specific control Cs is required to map.

According to the hood 9040 The ninth embodiment is propagated in the vehicle 2 the sidewall sections 9043 from the environment of the wide-angle unit 6030w to the first imaginary intersections I1 out. The first imaginary intersections I1 are the imaginary intersections I1 , According to the configuration block even in a case where the hood 9040 is formed small, the side wall sections 9043 hardly an idea of the first lower rays of light L1 holding the front windshield 3 at the first imaginary intersections I1 in the first depression angle ψd1 and at the angle of rejuvenation θ1 cross. It also spreads in the vehicle 2 the base wall section 9041 from the environment of the wide-angle unit 6030 to the second imaginary intersections I2 out. According to the configuration, the base wall portion block 9041 and the sidewall portions 9043 hardly an incident of the second lower rays of light L2 holding the front windshield 3 at the second imaginary intersections I2 in the second taper angle θ2 and in the second depression angle ψd2 cross. The second taper angle θ2 is smaller than the first taper angle θ1 , The second depression angle ψd2 is greater than the first depression angle ψd1. From the above viewpoint, the configuration enables the size of the camera module 1 that the hood 9040 has to reduce. The hood 9040 is not only capable of doing the normal optical image within the first taper angle θ1 that for the specific control Cs of the vehicle 2 is required to detect, but also the normal optical image within the second taper angle θ2 that for the other controller Ca of the vehicle 2 is required to capture.

Furthermore, they spread according to the hood 9040 of the ninth embodiment in the vehicle 2 the sidewall sections 9043 and the base wall portion 9041 to the second imaginary intersections I2 on the side where the sidewall sections 9043 and the base wall portion 9041 the first taper angle θ1 probably will not affect you out. The first taper angle θ1 is through the sidewall sections 9043 and the base wall portion 9041 that differ from the wide-angle unit 6030w to the first imaginary intersections I1 towards, that is, on the side of the external environment 5 behind the first imaginary intersections I1 , spread, guaranteed. The sidewall sections 9043 and the base wall portion 9041 are in cooperation whereby it is possible to block light before it is on the front windshield 3 is reflected, and penetration of the light into the inside of the first taper angle θ1 and an intrusion of this into the inside of the second taper angle θ2 if it is on the front windshield 3 is reflected, restrict. Therefore, the configuration enables the normal optical image within the first taper angle θ1 that for the specific control Cs is required to capture and the normal optical image within the second taper angle θ2 that for the other controller Ca is required to capture.

According to the ninth embodiment, in the collision-restriction control of the vehicle 2 against the front obstacle 5a as the specific controller Cs the relatively large first taper angle θ1 be ensured and the desired Kollisonsschränränkungsfunktion can be obtained. In contrast, it allows in the driving control of the vehicle 2 in the locomotion track, which is the other controller Ca as the specific controller Cs is the configuration, the relatively large second depression angle ψd2 of the second lower light beam L2 in the second taper angle θ2 comes to mind. In this case, the second taper angle θ2 be relatively small. The configuration makes it possible to show a desired drive control function.

Incidentally, in the ninth embodiment, the narrow angle unit 6030n and the telescope unit 6030t together with the wide angle unit described above 6030w contains the same operational effects as those of the first to fourth noted sets of the sixth embodiment.

Tenth embodiment

As it is in 33 a tenth embodiment is a modification of the first embodiment. In the tenth embodiment, a common positioning member 10060 , the respective lens units 30 is common, the camera module 1 added.

The common positioning element 10060 is formed in a plate-like shape and is made of a rigid material such as metal or resin. The common positioning element 10060 is on the upper cladding member 21 the camera panel 20 attached. The camera panel 20 brings respective lens units 10030 and the imaging system 50 in the accommodation room 25 using a screw or an adhesive, or by pressing under. In this example, as in the first embodiment, the camera cover is 20 through the clip assembly 10 inside the front windshield 3 mounted so that the common positioning member 10060 in the vehicle 2 is positioned.

The common positioning element 10060 has multiple (three in the present embodiment) insertion holes 10600w . 10600n and 10600t , which individually to the respective lens units 10030 in other words, individually to the respective units 10030w . 10030n and 10030t , correspond. The respective insertion holes 10600w . 10600n and 10600t respectively penetrate through the common positioning member 10060 in a cylindrical hole shape, with optical axes Aw . On and At of the respective units 10030w . 10030n and 10030t is aligned through. In other words, the respective insertion holes penetrate 10600w . 10600n and 10600t through the common positioning member 10060 in the axial direction. The axial direction crosses each of the directions, side direction and vertical direction. lens mounts 10032w . 10032n and 10032t of the respective units 10030w . 10030n and 10030t are respectively formed in cylindrical shapes having outer diameter. The outer diameters complement respectively the diameters of the respective insertion holes 10600w . 10600n and 10600t ,

The common positioning element 10060 has a reference surface section 10601 in which the respective insertion holes 10600w . 10600n and 10600t on its rear surface opposite to the external environment 5 are open. The reference surface section 10601 is formed in a flat surface shape and is substantially perpendicular to the optical axes Aw . On and At of the respective units 10030w . 10030n and 10030t , The reference surface section 10601 spreads along a single plane at a position where the respective units 10030w . 10030n and 10030t overlap each other when viewed in the vertical direction. In this example, the lens frames are 10032w . 10032n and 10032t of the respective units 10030w . 10030n and 10030t respectively with flanges 10038w . 10038n and 10038t in annular plate-shaped shapes at locations that coincide with the reference surface portion 10601 Cover in the axial direction, integrated. In the respective units 10030w . 10030n and 10030t have the flanges 10038w . 10038n and 10038t respectively adjoining surface sections 10380w . 10380n and 10380t on their front surfaces on the side of the external environment 5 , The adjoining surface sections 10380w . 10380n and 10380t are in flat surface shapes and are substantially perpendicular to the respective optical axes Aw . On and At ,

In the configuration are the lens mountings 10032w . 10032n and 10032t of the respective units 10030w . 10030n and 10030t respectively coaxial with the insertion holes 10600w . 10600n and 10600t fitted, according to the axes. In addition, the lens mountings 10032w . 10032n and 10032t of the respective units 10030w . 10030n and 10030t respectively in surface contact with the abutment surface portions 10380w . 10380n and 10380t the respective flanges 10038w . 10038n and 10038t on the common reference surface section 10601 in the axial direction. In this way are the respective units 10030w . 10030n and 10030t with reference to the camera cover 20 on the same plane along the reference surface section 10601 positioned in the axial direction. In addition, the units 10030w . 10030n and 10030t respectively in the insertion holes 10600w . 10600n and 10600t fitted so as to be positioned also in the side direction and in the vertical direction.

The lens frames 10032w . 10032n and 10032t of the respective units 10030w . 10030n and 10030t are positioned in the same manner as described above and are at the common positioning member 10060 with the respective flanges 10038w . 10038n and 10038t fastened using screws. Alternatively, the lens frames 10032w . 10032n and 10032t of the units 10030w . 10030n and 10030t respectively at the insertion holes 10600w . 10600n and 10600t secured using an adhesive or by pressing.

According to the tenth embodiment described above, in the vehicle 2 the respective lens units 10030 in the camera panel 20 housed at the front windshield 3 attached to using the common positioning member 10060 that is common to these units to be positioned in the axial direction. In other words, according to the first embodiment, the units 10030w . 10030n and 10030t as the lens units 10030 belonging to the first to fourth noted sets using the common positioning member 10060 with reference to the camera cover 20 positioned in the axial direction. In this way it allows the common positioning member 10060 , a variation in a bilateral axial position ratio of the respective units 10030w . 10030n and 10030t in the vehicle 2 to reduce. In other words, the positioning accuracy of the respective units 10030w . 10030n and 10030t in the vehicle 2 be guaranteed. Furthermore, the axial positions of the respective units 10030w . 10030n and 10030t using the common positioning member 10060 be adjusted together. Therefore, productivity can be improved.

According to the common positioning member 10060 In the tenth embodiment, the reference surface portion is adjacent 10601 to the respective units 10030w . 10030n and 10030t in the axial direction in the vehicle 2 to position all of the units. In particular, in the tenth embodiment, all of the units 10030w . 10030n and 10030t by adjoining the reference surface section 10601 positioned at the same level. According to the configuration, it becomes the respective units 10030w . 10030n and 10030t allows you to be positioned precisely at the same level. Therefore, the configuration hardly causes a variation in the two-sided axial position ratio in the vehicle 2 per se. In other words, the respective units 10030w . 10030n and 10030t in the vehicle 2 be positioned with high accuracy. Additionally, the respective units 10030w . 10030n and 10030t be easily and jointly positioned in the axial direction by attaching to the reference surface section 10601 are bordered on the same level. Therefore, the configuration makes it possible to promote high productivity and efficiency.

Incidentally, the respective units 10030w . 10030n and 3030t according to the tenth embodiment substantially identical to the units 30w . 30n and 30t the first embodiment except for the above-described configurations. Therefore, according to the tenth embodiment, the same operation effects as those of the first to fourth notated sets can be generated in the first embodiment. In particular, according to the tenth embodiment, the depth of field detections dw . dn and dt by a positioning of the respective units 10030w . 10030n and 10030t be accurately set in the axial direction. Therefore, the configuration makes it possible to ensure reliability of the effect of restricting loss of an object in the coverage regions Rnw and Rtn. In particular, according to the tenth embodiment, the respective units 10030w . 10030n and 10030t in the insertion holes 10600w . 10600n and 10600t fitted, respectively by the common positioning member 10060 penetrate in the axial direction to thereby be positioned in the lateral direction. Therefore, according to the tenth embodiment, the configuration makes it possible to ensure reliability of the effect of improving image position accuracy in the lateral direction in the outside environment imaging.

Other embodiments

The multiple embodiments have been described above. However, the present disclosure should not be interpreted to be limited to the embodiments, and may be applied to various embodiments and combinations without departing from the spirit of the present disclosure. In the following description represent 34 . 45 and 46 Representative examples of modifications related to the second embodiment and represent 35 to 37 . 40 . 48 and 49 Representative examples of modifications related to the first embodiment, and represent 38 . 39 . 43 and 44 Representative examples of modifications related to the third embodiment. In the following description put 41 and 42 typically represents modifications of the ninth embodiment and provides 47 typically a modification of the sixth embodiment.

More specifically, in Modification 1 related to the first to fifth and tenth embodiments, positioning positions of at least two kinds of units from the wide-angle units can be set 30w . 2030W . 3030w . 4030w . 5030w and 10030w , the narrow angle units 30n . 2030n . 3030n and 10030n and the telescope units 30t . 2030t . 3030t and 10030t be replaced with each other. In a specific example, that in 34 can be seen in this case, the positioning positions of the wide-angle unit 2030W and the telescope unit 2030t replaced in the second embodiment. In this example, due to focal lengths corresponding to the angles θw, θn, and θt (more specifically, combined focal lengths of the lenses 34w . 34n . 34t and their subsequent lens sets), the distance between each of the front ends, front end of the telescope unit 2030t and front end of the narrow angle unit 2030n , and the corresponding imager unit 51 longer than the distance between the front end of the wide-angle unit 2030W and the corresponding imager unit 51 , Therefore, in the specific example that in 34 you can see the telescope unit 2030t and the narrow angle unit 2030n to the deeper or more distant side further than the wide-angle unit 2030W to be able to resize the camera module 1 to reduce in the longitudinal direction.

In Modification 2 of the first to tenth embodiments, the telescope units 30t . 2030t . 3030t . 6030t . 7030t . 8030t and 10030t not be provided. In this case, even in a case where the narrow-angle lens 34n the narrow angle units 30n . 2030n . 3030n . 6030n . 7030n . 8030n and 10030n through the telescope lens 34t the telescope units 30t . 2030t . 3030t . 6030t . 7030t . 8030t and 10030t is replaced, the same operation effects as those of the first to tenth embodiments are generated.

In Modification 3, which relates to the first, second, fourth, fifth and tenth embodiments, the positioning positions of the telescopic units 30t . 2030t and 10030t other than the upper side of the narrow angle units 30n . 2030n and 10030n his. In a specific example, that in 35 to 37 can be seen, is located in the case, the telescope unit 30t on one side of at least one of the units, wide-angle unit 30w and narrow angle unit 30n , in the lateral direction. In this way, the telescope unit covers 30t with at least one of the units, wide angle unit 30w and narrow angle unit 30n , in the lateral direction.

In Modification 4 related to the third to fifth and tenth embodiments, according to the second embodiment, the wide-angle units 3030w . 4030w . 5030w and 10030w to the deeper or more distant side further than at least one of the units, upper narrow angle units 3030n . 10030n and telescope units 3030t . 10030t , stand out. In a specific example, that in 38 and 39 can be seen in the case, the wide-angle unit 3030w to the deeper or more distant side further than both the narrow angle unit 3030n as well as the telescope unit 3030t out.

In Modification 5, referring to the first, third, fourth, fifth and tenth embodiments is related, the lens window 211 individually in each of the units 30w . 30n . 30t . 3030w . 3030n . 3030t . 4030w . 5030w . 10030w . 10030n and 10030t be provided according to the second embodiment. In Modification 6 related to the second embodiment, the lens window 211 together with all of the units 2030W . 2030n and 2030t be provided according to the first embodiment.

In Modification 7 related to the first, fourth, fifth and tenth embodiments, the optical axes are Aw . On and At of the respective units 30w . 30n . 30t . 4030w . 5030w . 10030w . 10030n and 10030t as it is in 40 can be seen, decentered from each other especially in the lateral direction, so that these units can cover each other when viewed in the lateral direction. In that case, the operation effects other than those related to the image position accuracy in the lateral direction may be generated in the same manner as those in the first embodiment. In addition, image position accuracy in the lateral direction can be ensured by correcting the displacement of the position coordinates.

In Modification 8, which relates to the second, third and sixth to tenth embodiments, the depth of focus detection dw the wide angle units 2030W . 3030w . 6030w and 10030w be set according to the fourth embodiment. In Modification 9, which relates to the second, third and sixth to tenth embodiments, the depth of focus detection dw the wide angle units 2030W . 3030w . 6030w and 10030w be set according to the fifth embodiment.

In Modification 10, which relates to the sixth to ninth embodiments, the positioning positions of the narrow angle units 6030n . 7030n . 8030n and the telescope units 6030t . 7030t and 8030t be replaced with each other. In Modification 11 related to the sixth to ninth embodiments, the front end of the wide-angle unit 6030w from the inside of the lens window 6211w and the inside of the wide-angle exposure window 6431w in the picture room 410 penetration. In Modification 12 related to the sixth to ninth embodiments, the front end of the wide-angle unit 6030w into the inside of the lens window 6211w in a state where it is outside of the picture space 410 and outside the wide-angle exposure window 6431w is, penetrate.

In Modification 13 according to the sixth to ninth embodiments, at least two of the optical axes Aw, An, and At of the respective units 6030w . 6030n . 6030t . 7030n . 7030t . 8030n and 8030t be decentered from each other in both the lateral direction and the vertical direction and displaced in the vertical direction. In Modification 14 according to the ninth to seventeenth embodiments, the specific control Cs may be different from the collision-restricting control of the vehicle 2 his. In Modification 15 according to the ninth embodiment, as long as the other control Ca is different from the specific control Cs, the other control Ca may be different from the driving control of the vehicle 2 be in a locomotion track. In Modification 16 according to the ninth embodiment, the other control Ca can not be performed. In that case, the second taper angle θ2 is not defined. Therefore, the second imaginary intersection point I2 can not be defined imaginarily. For example, the base wall portion 9041 along the second depression angle ψd2 as specified.

In Modification 17 according to the first to tenth embodiments, at least one-sided wall portions 43 . 6043 and 9043 upright from the base wall sections 41 and 9041 be raised at a sharp or obtuse angle. In modification 18 according to the first to tenth embodiments, the side wall portion 43 . 6043 and 9043 be formed on at least one side in a curved plate shape or in a curved plate shape. In a specific example, that in 41 can be seen, in this case, the side wall sections 9043 bent at positions corresponding to the first imaginary intersections I1 correspond to respective bent portions 9043b and straight sections 9043c to have. In this example, the bent sections are 9043b formed such that these inner wall surfaces 9043ab along the lines of rejuvenation of the angle of view θ1 on the outside of the first taper angle θ1 on the side of the wide-angle unit 6030w the first imaginary intersections I1 as laid out in the ninth embodiment. The first taper angle θ1 corresponds to the angle of view θw the wide angle unit 6030w , The exposure window 6431n and 6431t are in the bend sections 9043b open. The opposite is the straight section 9043c from that in the ninth embodiment on the side of the outside environment 5 behind the first imaginary intersections I1 different. Inner wall surfaces 9043ac are substantially parallel to the optical axis Aw of the wide-angle unit 6030w within the taper lines of the first taper angle θ1 out.

In Modification 19 related to the ninth embodiment, it opens / opens as shown in FIG 42 you can see the exposure windows 6431n and or 6431t in at least one of the bending portions on the side of the outside environment 5 from the first imaginary intersection I1 , The exposure window 6431n and or 6431t opens / opens on at least one side wall section 9043 , 42 shows a specific example in the modification 19 on the sidewall portions 9043 is applied on both sides.

In Modification 20, which relates to the third to fifth embodiments, the common positioning member 10060 and the flanges 10038w . 10038n . 10038t according to the tenth embodiment, so that the respective units 30n . 30t . 3030w . 3030n . 3030t . 4030w and 5030w overlap each other in at least one of the directions, vertical direction and lateral direction, and using the reference surface portion 10601 are positioned at the same level. In a specific example, that in 43 and 44 in the case are the respective units 3030w . 3030n and 3030t positioned on the same plane at the overlapping position in the vertical direction or the lateral direction.

In Modification 21, which relates to the second and sixth to ninth embodiments, the common positioning member 10060 and the flanges 10038w . 10038n . 10038t according to the tenth embodiment, so that the respective units 2030W . 2030n . 2030t . 6030w . 6030n . 6030t . 7030n . 7030t . 8030n and 8030t using the reference surface section 10601 are positioned on the same plane as far as these units coincide with each other in at least one of the directions, vertical direction and lateral direction. In a specific example, that in 45 in the case are the respective units 2030W . 2030n and 2030t positioned on the same plane at the overlapping positions in the vertical direction in combination with modification 1 described above.

In Modification 22 related to the first to ninth embodiments, the common positioning member may 10060 and the flanges 10038w . 10038n . 10038t provided by the tenth embodiment may be provided such that the respective units 30w . 30n . 30t . 2030W . 2030n . 2030t . 3030w . 3030n . 3030t . 4030w . 5030w . 6030w . 6030n . 6030t . 7030n . 7030t . 8030n and 8030t are positioned on a reference surface portion on planes different from each other. In a specific example, that in 46 and 47 in the case are the respective units 2030W . 2030n . 2030t . 6030w . 6030n and 6030t individually in the axial direction on the planes different from each other, using reference surface portions, respectively 10601w . 10601n and 10601t which are shared, positioned.

In Modification 23, which relates to the first to ninth embodiments, the common positioning member 10060 provided by the tenth embodiment, such that the respective units 30w . 30n . 30t . 2030W . 2030n . 2030t . 3030w . 3030n . 3030t . 4030w . 5030w . 6030w . 6030n . 6030t . 7030n . 7030t . 8030n and 8030t respectively at the insertion holes 10600w . 10600n and 10600t fastened using screws and are positioned. In a specific example, that in 48 in the case, positioning in the axial direction is made by screwing the respective units 30w . 30n and 30t respectively in the insertion holes 10600w . 100600n and 10600t reached.

In Modification 24 according to the first to tenth embodiments, at least a part of the functions of the control circuit 55 through an external circuit, such as an ECU, outside the camera panel 20 is to be generated. In Modification 25 according to the first to tenth embodiments, at least one passage window 541 not on the control panel 54 be formed. In that case, the FPC becomes 540 passing through the passage window 541 is inserted by an FPC 1540 that extends around an outer peripheral side of the rear side edge 544 the control panel 54 winds, replaced as it is in 49 you can see. 49 shows a specific example in which only the FPC 1540 that with the telescope unit 30t and the corresponding imager unit 51 is connected to the outer peripheral side of the rear side edge 544 is winding.

In Modification 26 according to the first to tenth embodiments, the staple main body 11 with an adhesive on the front windshield 3 be attached without the mounting pad 12 provide. In Modification 27 according to the first to tenth embodiments, the mounting pad 12 That with the camera panel 20 is held with an adhesive on the front windshield 3 be attached without the staple main body 11 provide.

In Modification 28 according to the first to tenth embodiments, the hood 40 . 6040 and 9040 separated from the staple main body 11 be formed. In Modification 29, which relates to the first to fifth and tenth embodiments, the hood 6040 modified by the sixth embodiment, through the hood 40 be replaced to the units 30w . 30n . 30t . 2030W . 2030n . 2030t . 3030w . 3030n . 3030t . 4030w . 5030w . 10030w . 10030n and 10030t not respectively from the exposure windows 6431w . 6431n and 6431t but from the portion between the rear ends of the respective side wall portions 6043 , In modification 30, which relates to the first to fifth and tenth embodiments, the hood 9040 modified by the ninth embodiment, through the hood 40 be replaced to the units 30w . 30n . 30t . 2030W . 2030n . 2020T . 3030w . 3030n . 3030t . 4030w . 5030w . 10030w . 10030n and 10030t not respectively from the exposure windows 6431w . 6431n and 6431t but from the portion between the rear ends of the respective side wall portions 9043 ,

In modification 31 according to the seventh and eighth embodiments, the hood 6040 through the hood 9040 of the ninth embodiment. In modification 32 according to the first to fifth and tenth embodiments, the hood 40 not be provided. In Modification 33 according to the first to tenth embodiments, multiple convex ribs or multiple concave grooves may be provided to extend along the lateral direction in the hoods 40 . 6040 and 9040 to extend.

In Modification 34 according to the first to tenth embodiments, extending directions of at least two of the optical axes Aw, An, and At of the respective units 30w . 30n . 30t . 2030W . 2030n . 2020T . 3030w . 3030n . 3030t . 4030w . 5030w . 6030w . 6030n . 6030z . 7030n . 7030t . 8030n . 8030t . 10030w . 10030n and 10030t be inclined relative to each other. In addition to the above, in Modification 35 according to the first to tenth embodiments, the camera module 1 inside a rear windshield of the vehicle 2 in this case, a context in the first to tenth embodiments is reversed.

In another modification, the camera module includes multiple lens units 30 . 2030 . 3030 . 10030 , which respectively are optical axes Aw . On . At to have. The optical axes are shifted from each other. An optical image of the external environment penetrates individually into perspective θw . θn . θt respectively formed around the optical axes. The viewing angles θw . θn . θt are different from each other. The camera module further includes an imaging system 50 to perform imaging individually through the lens units and to produce an external image of the external environment. According to one definition, a noted set is a set of lens units in which angles of view θw . θn . θt overlap each other, at least two of the lens units belonging to the notated set overlap each other when viewed in a lateral direction of the vehicle.

In another modification, the camera module includes multiple lens units 6030 , which respectively are optical axes Aw . On . At to have. The optical axes are shifted from each other, an optical image of the external environment penetrates individually into viewing angles θw . θn . θt , which are respectively about the optical axes, a. The camera module further includes an imaging system 50 to perform imaging individually through the lens units and to produce an exterior image of the external environment. The camera module also includes a hood 6040 . 9040 having a picture space 410 which is therefor to guide the optical image of the external environment in an imaging target area of the imaging system to the lens units and to restrict incident light on the lens units from an outside of the imaging target area. One of the lens units is as a first lens unit 6030w which has a viewing angle θw wider than or equal to that of the rest of the plurality of lens units. The hood contains: a base wall section 41 . 9041 to be fixed to face across the picture space of the windshield, and a side wall section 6043 . 9043 which is raised from the base wall portion on a lateral side of the imaging space and laterally outwardly extended, in accordance with a wide angle unit viewing angle θw from an environment of the first angular unit to an outer peripheral side. A narrow angle exposure window 6431n . 6431t opens in the sidewall portion and exposes one of the remainder of the plurality of lens units to the imaging space.

In another modification, the camera module includes multiple lens units 30 . 2030 . 3030 . 6030 . 10030 , which respectively are optical axes Aw . On . At to have. The optical axes are shifted from each other, an optical image of the external environment penetrates individually into viewing angles θw . θn . θt , which are respectively about the optical axes, a. The viewing angles θw . θn . θt are different from each other. The camera module further includes an imaging system 50 to perform imaging individually through the lens units and to produce an exterior image of the external environment. According to one definition, a noted set is a set of lens units in which angles of view θw . θn . θt cover each other. Focus detections dw . dn , Dt The lens units belonging to the notated set overlap each other, in which a distant point dwf . dnf from another of the lens units between a near point dnc . dtc and a distant point dnf . dtf of one of the lens units in the outside environment. Each of the dots, remote point from one point and remote point from the other, defines a boundary position of image recognition that is implemented by mapping through the corresponding one of the lens units.

In another modification, the camera module includes multiple lens units 30 . 2030 . 3030 . 6030 . 10030 , which respectively are optical axes Aw . On . At to have. The optical axes are shifted from each other, an optical image of the external environment penetrates individually into viewing angles θw . θn . θt , which are respectively about the optical axes, a. The camera module further includes an imaging system 50 to perform imaging individually through the lens units and to produce an exterior image of the external environment. The camera module also includes a camera cover 20 , which is attachable to the windshield and accommodates each of the lens units. The camera module further includes a common positioning member 10060 which is a single piece and provided in common for the lens units and positioning of each of the lens units with respect to the camera cover in an axial direction.

In another modification, angles overlap θw . θn . θt of at least two of the lens units belonging to the noted set together at a distance of ten meters from the camera module.

In another modification, the camera module includes multiple lens units 30 . 2030 . 3030 . 10030 , the respective optical axis Aw . On . At to have. The optical axes are different from each other.

Each of the windows, wide-angle exposure window 6431w , Narrow angle exposure window 6431n and telescope exposure windows 6431t , is an opening.

Claims (11)

A camera module (1) configured to be mounted on an inside of a windshield (3) of a vehicle (2) and to image an exterior environment (5) of the vehicle, the camera module comprising: a plurality of lens units (30, 2030, 3030, 10030) each having optical axes (Aw, An, At) with the optical axes shifted from each other, an optical image of the external environment being viewed individually in viewpoints (θw, θn, θt), which are respectively about the optical axes, penetrates, wherein the viewing angles (θw, θn, θt) are different from each other, and an imaging system (50) for performing imaging individually through the lens units and for generating an exterior image of the external environment, wherein According to a definition that a notated set is a set of lens units in which viewing angles (θw, θn, θt) overlap each other, at least two of the lens units belonging to the notated set overlap each other when viewed in a vertical direction of the vehicle. Camera module according to Claim 1 wherein the optical axes (Aw, An, At) of the lens units (30, 2030, 10030) belonging to the noted set are decentered from each other in the vertical direction of the vehicle. Camera module according to Claim 1 wherein the optical axes (Aw, An, At) of the lens units (3030) belonging to the noted set are decentered from each other in both the vertical direction and a lateral direction of the vehicle. Camera module according to one of Claims 1 to 3 , wherein depth of field detections (Dw, Dn, Dt) of the lens units (30, 2030, 3030, 10030) associated with the noted set overlap one another. Camera module according to one of Claims 1 to 4 wherein the lens units (30, 2030, 3030, 10030) associated with the noted set include: a wide angle unit (30w, 2030w, 3030w, 4030w, 5030w, 10030w) having a viewing angle (θw) coincident with the Wide angle lens (34w), and a narrow angle unit (30n, 30t, 2030n, 2030t, 3030n, 3030t, 10030n, 10030t) having a viewing angle (θn, θt) narrower than that of the wide angle unit. Camera module according to one of Claims 1 to 4 wherein the lens units (30, 2030, 3030, 10030) associated with the noted set include: a wide angle unit (30w, 2030w, 3030w, 4030w, 5030w, 10030w) having a viewing angle (θw) coincident with the Wide angle lens (34w), and a narrow angle unit (30n, 30t, 2030n, 2030t, 3030n, 3030t, 10030n, 10030t) having an angle of view (θn, θt) narrower than that of the wide angle unit, and a far point (Dwf) defining a depth-of-focus detection (Dw) of the wide-angle unit on a lower side behind a near-point (Dnc) defining a depth-of-focus detection (Dn) of the narrow-angle unit. Camera module according to Claim 5 or 6 wherein the windshield is inclined downward toward the lower side, the wide-angle unit (2030w, 3030w) protrudes toward the lower side behind the narrow-angle unit (2030n, 2030t, 3030n, 3030t), and the narrow angle unit on an upper side of the wide-angle unit is. Camera module according to one of Claims 5 to 7 wherein the lens unit (30, 2030, 3030, 10030) associated with the noted set further includes: a telescope unit (30t, 2030t, 3030t, 10030t) having a viewing angle (θt) narrower than that of the Narrow angle unit (30n, 2030n, 3030n, 10030n). Camera module according to one of Claims 5 to 7 wherein the lens units (30, 2030, 10030) associated with the noted set further include: a telescope unit (30t, 2030t, 10030t) having a viewing angle (θt) narrower than that of the narrow angle unit (30n, 2030n, 10030n), and a far point (Dnf) defining depth-of-focus detection (Dn) of the narrow-angle unit is on a lower side past a near point (Dtc) defining depth-of-field recognition (Dt) of the telescope unit. Camera module according to Claim 8 or 9 wherein the windshield is inclined down to a lower side, the narrow angle unit (2030n) protrudes to the lower side behind the telescopic unit (2030t), and the telescopic unit is on an upper side of the narrow angle unit. Camera module according to one of Claims 1 to 10 wherein viewing angles (θw, θn, θt) of at least two of the lens units associated with the noted set coincide with each other within a distance of ten meters from the camera module.

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